Thank you Vinayak. Hello everyone. As Kenny noted, we are very pleased with our strong revenue growth with fourth quarter revenue growing 64% year-over-year to $345 million, and full year revenue jumping 72% to $1.194 billion. That strong performance was due to the incredible efforts of our team to secure supply and service our customers during the challenging period for the industry. Providing more detail on revenue. Our membership revenue grew 38% year-over-year in the quarter and 27% for the full year. As we've discussed previously, we believe our membership revenue is highly visible and largely recurring, especially since our retention rates continue to remain strong at approximately 80% for core business members overall, and approximately 90% for core business members who purchase prepaid blocks. In the fourth quarter, we added 665 net new members with active members growing 31% year-over-year, our core business offerings with their guaranteed availability, and cap rates across all asset classes continue to resonate with customers even as we raise certain cap pricing tiers in November. Those membership tiers were a key driver of growth in the quarter, along with the continued success of our American Express partnership. As Kenny mentioned, we implemented a temporary moratorium on flying for certain new members and pay as you go flying during the fourth quarter, so that we could prioritize our supply to service our existing members. I'm pleased to say that while there was a temporary headwind and adding perspective members, overall membership trends and prepaid blocks remained strong throughout the moratorium. Also new membership sales had picked up following the lifting of the moratorium in February. Turning to flight revenue. Flight revenue was up 66% year-over-year for the quarter and up 76% for the full year. Live Flight Legs were up 63% year-over-year in the quarter and 65% for the full year. We continue to see strong ledger demand and the beginnings of a pick-up in business and international travel. And we are pleased with this performance even as supply chain constraints limited our ability to address potential significant demand from connect and non-members through our market place. A Live Flight Leg growth at 63% significantly outpaced North American private aviation Flight Leg growth of about 45% for the year, highlighting our ability to gain share. Just as a reminder to you, industry metrics allocate all of our 3P flying to those third-party operators we utilize, even though those flights are actually for our customers. Flight revenue per Live Flight Leg was $12,428 for the quarter. This was up slightly year-over-year. Please keep in mind this metric is a function of various factors, including pricing, [Indiscernible] and peak versus off-peak flying. While the mix of those components varies from quarter-to-quarter, we expect to show an increasing benefit over time from the price increases that we announced last November, particularly as a prepaid blocks that lost in prior rates are utilized over the course of the year. Prepaid block sales were incredibly strong at $540 million in the quarter, up 80% year-over-year. This provides us a great visibility for the year ahead. Also blocked sales have continued to be strong so far this quarter, even with the recent cap rate increases. Currently, over 60% of our core members have a prepaid block. Switching to aircraft management, our aircraft management revenue grew 69% year-over-year for the fourth quarter, and 70% for the full year, driven by higher flight volumes by owners and member charter usage. We managed approximately 150 aircraft as of the end of the fourth quarter, which are down slightly from the prior quarter. As we mentioned on previous calls, we are continuing to restructure certain legacy management contracts that are not commercially advantageous to us. There were about 15 of those contracts remaining at the end of the year, down from about 20 at the end of the third quarter. Our last revenue category is other revenue. Other revenue is a small percentage of our total revenue and represents revenue earned from software fixed base operations, or FBO, Maintenance, Aircraft Sales and special missions including defense. Now let me address cost of revenue and margin. Our strategy is to optimize utility and efficiency across our entire 1P, 2P and 3P fleets. Our goal is to use technology to automate scheduling so that we use the right plane in the right place at the right time to minimize repositioning legs and improve profitability. The process improvement technology and automation initiatives that Vinayak described are expected to be a significant driver margin improvement in the future. That's our goal. But it's clearly taking more time in this market environment. As we mentioned our last quarterly call, we did expect unprecedented demand, coupled with similarly unprecedented industry labor supply and cost pressures to impact our on-fleet utility and efficiency, and therefore increase our operating costs in the fourth quarter. In addition to service our members, we depended on more expensive third party supply and absorbed a higher level of complimentary cabin class upgrades. Due to all those factors our adjusted contribution margin fell to 1.3% in the quarter, which is generally in line with the expectations we articulated on the third quarter call. So now let me take a moment to update you on our progress on the tactical initiatives we also laid out last quarter. First, as Vinayak mentioned, we are in a much better position with our pilot numbers. And we are now applying lessons learned from our pilot initiatives to improve our maintenance capabilities. As the pilots complete training, which takes more time in this environment given high demand for training slots, and our in house maintenance capabilities increase, we should be in a position to significantly improve the utilization of our existing aircraft. We're also looking to add more 1P capacity through acquisition and individual aircraft purchases. I’ll provide more details on that in a minute. Second, we will start seeing a more meaningful impact in the upcoming quarters from pricing, particularly for the 13% increase on cap rates for King Air and 8% increase for Light Jets that we implemented in early December. While existing pay-as-you-go members generally saw price increases in December, price increases for members who purchase prepaid blocks before December, will phase in overtime as their blocks are utilized. Also, we just announced a $295 to $895 per hour fuel surcharge, depending on cabin class on substantially all flights for the first time in our history, due to the spike in fuel costs. This fuel surcharge will commence on April 9, and applied to prepaid block flights as well. Third, we're having success driving more managed charter hours, hours that our members fly on our manage tails out of our 2P fleets. We expect significant growth in our 2P flights in 2022 due to an expected increase in charter hours per managed aircraft. Aided by the launch of our charter guarantee program and a healthy pipeline of charter friendly fleet addition. Four, we continue to expand the utilization of long term GRPs or guaranteed rate programs to augment our fleet capacity to help us best serve our customers. Our visibility of flight demand allows us to plan ahead and more confidently lock up supply earlier. Recently, we have started to reduce fee cabin class upgrades, and the need for last minute 3P supply, which should allow us to improve our margin on 3P aircraft. Fifth, we are almost halfway to our goal of hiring 50 software engineers, most of whom will be based in our new Technology Center in Seattle. With pricing, process improvements additional supply and technology initiatives we have many levers that will help us improve adjusted contribution margin in the second half of the year. Switching to OpEx, we continue to see a lot of opportunities to grow, and we'll continue to invest in sales and marketing that we expect those expenses will come down as a percentage of revenue over time. In terms of research and development, technology is the key investment area for us. As part of the significant hiring of software engineers I mentioned, we're having great success and encountered technologists from leading companies and we expect to continue these efforts. Capitalized software is an important component of our CapEx. General administrative expenses were unusually high in the fourth quarter, due to the timing of expenses and employee costs. In 2022, we expect to get more leverage in our G&A spend as a percentage of revenue. This is due in part to a restructuring program we began recently to streamline our corporate overhead and other costs. The annual savings from the cuts made late in the first quarter are expected to be in excess of $10 million on an annual run rate basis. When you put things all together, adjusted EBITDA came in at a negative $46.3 million for the quarter and a negative $87.4 million for the year, which was within our most recent guidance range. Cash flow from operations were very strong, coming in at $279 million for the quarter and $126 million for the year. That strength was due primarily to the strong prepaid block sales we have discussed, which importantly, allows us to operate with negative working capital. Kindly keep in mind while block sales have been very strong, there is seasonality to those sales. Capital expenditures including capitalized software was $28 million for the year, coming in at the lower end of our recent guidance range due to timing. Almost half of our CapEx was capitalized software. Now I'd like to discuss our fleet strategy and certain other plans for 2022. Our 1P fleet is a mix of owned and leased aircraft, both of which are included in our balance sheet. When we evaluate adding an aircraft, we have various options to consider. We can either buy it, lease it, finance it, or even sell it into our managed fleet over time for our charter usage. For example, we recently paid $65 million to Textron, a 32-mid and Supermid citation aircraft that were previously on our balance sheet as operating leases with a $10 million annual lease cost. We have been operating these aircraft, but many of them branded with blue and white painted tail. We could have entered into a third party sale leaseback transaction with a third party on similar terms. But given our cash position we elected to purchase these aircraft outright, and we'll consider potential alternative financing options overtime as needed. We were also looking to further bolster our 1P fleet. Having scheduled control of aircraft in a strong demand environment is valuable. That's why we purchased Alante, which leases 12 highly sought after Light Jet. And we will continue to evaluate other acquisition candidates. We also see opportunities to strategically use our aircraft brokerage purchase and jet capabilities. Some aircraft may be purchased outright for our fleet. For other aircraft, we believe we are in a great position to sell them to future owners who can recognize the tax benefits from the accelerated depreciation. Ideally, they can either lease them back to us or we may manage these aircraft with the owners committing to allow us to use their aircraft for charter customers, which we view as a win win proposition. Due to our increased brokerage capabilities, we're adding aircraft to our balance sheet as assets held for sale with an expected short term holding period. We started doing this during the fourth quarter, with $18 million in aircraft held for sale as of the end of the year. In total, capital spending for 2022 is expected to be approximately $125 million. That includes what we consider normal capital spending of $60 million for purchase aircraft, capitalized software etcetera as well as the $65 million spent for the Textron aircraft purchase in the first quarter, which we view primarily as a financing decision of previously leased and operated aircraft. Free cash flow defined as cash flow from operations less total capital expenditures, including capitalized software is also very strong, coming in at $267 billion for the fourth quarter and $98 million for the full year. Due to that strong free cash flow at year end, Wheels Up had a very healthy balance sheet with cash and cash equivalents of $784 million and essentially no indebtedness. Let me turn now to our guidance, which does not include any pending or potential acquisition, including Air Partner. Looking at 2022, given the strong demand we are seeing and the visibility provided from the strong prepaid block sales and resulting $935 million of deferred revenue as of December 31, 2021 we expect revenue to be in the range of $1.35 billion to $1.42 billion for the year. From a seasonality perspective, typical industry trends pre-COVID had been that Q1 and Q2 are similar from a demand perspective as our Q3 and Q4 are compared to each other with demand slightly stronger in the back half of the year compared to the first half. This pattern has changed however, due to COVID. For this year, we expect the first quarter will be the lowest revenue quarter in dollars for the year, but up approximately 15% year-over-year. We were not immune to widespread Omicron related staffing shortages and adverse winter weather, but it did impact our operating performance in January and February of this year. In addition, the moratorium that we suddenly ended resulted in reduced flying availability for certain members and non-members and impacted our lower and connect membership sales that do not have the same guarantee flight rule set as core members. The good news is demand has picked up as the moratorium was -- as a result, we expect our total revenue grow each quarter over the course of the year. Moving to margin cost of service to our customers have increased as we work through operational process improvements and develop our technology. Our fuel costs for one are sharply higher due to geopolitical events. We will start mitigating this effective April 9 as we implement the fuel surcharge I discussed earlier. When you consider things all together, we expect our adjusted contribution margin in the first quarter will be down slightly versus the fourth quarter and improve as the year progresses. We expect first quarter adjusted EBITDA to be in a range of negative $52 million to negative $57 million. We also expect to report a GAAP net loss of between $105 million to $115 million for the first quarter. Reflected in this gap range are several non-cash estimates. A $10 million charge related to earn out shares, a $15 million expense related to stock-based compensation, $20 million of depreciation, amortization expense, and $10 million of restructuring costs and other non-cash items. The range does not reflect any non-cash gain or loss related to the fair value of our warrants, or any other unusual items. As our operational and technology in this year progress along with better pricing, we still expect to exit the year with higher margins that will set us up well for 2023 and beyond. However, with the current geopolitical landscape, coupled with macroeconomic uncertainties, we think it is prudent for now to provide [ph] adjusted EBITDA and GAAP earnings guidance one quarter at a time. In closing, I want to reiterate our core and business member retention and lifetime value are very important to the long term value of the company. That is why we are incurring incremental costs to ensure our customers get the best possible experience in this environment. We are investing in our technology enabled marketplace platform and still believe we will have significantly increase margin in the future. With that, thank you all for joining. Let me turn the call back to the operator so we can take your questions.