...Thank you, and welcome to Booking Holdings' fourth quarter conference call. I'm joined this afternoon by our CFO, David Goulden. Despite the appearance of the Omicron variant in late November and its rapid spread throughout Europe, the U.S. and other parts of the world, we closed out 2021 by delivering fourth quarter revenue and adjusted EBITDA of $3 billion and $940 million, respectively, which were better than we expected. Room nights decelerated from down 10% in October compared to 2019 to down 35% in December. However, I am pleased to say that since December, we have seen a meaningful improvement in top line trends, with room nights in the first half of February reaching 2019 levels and with gross bookings higher than 2019. At Booking.com, I'm encouraged to see strong gross bookings on our books for the summer period in Western Europe and North America, both of which are now ahead of where we were at this time in 2019. Although I note that a high percentage of these bookings are cancelable....
