Airbnb Inc posted strong fourth-quarter bookings and issued an upbeat revenue outlook, citing strong travel demand and growing adoption of its new flexible payment and booking options.Revenue for the quarter ending on March 31 will be $2.59 billion to $2.63 billion, the home-rental giant said in a shareholder letter on Thursday. Wall Street was expecting $2.54 billion. For the full year, the company projected revenue growth to accelerate to “at least low double digits” from the 10 per cent it saw in 2025, i ...