Imagine that you are planning a trip. A few decades ago, it would take you a lot of time and effort to research destination and accommodation options, book a flight, make a hotel reservation, rent a car, and do a bunch of other trip-related activities. Today, with the help of machine learning and AI, you can use a one-stop travel platform to plan and book everything you need. And the best thing is, you don't have to leave your home or even your bed. This convenience wouldn't be possible without machine learning and artificial intelligence technologies actively adopted by the travel, tourism, and hospitality industries in recent years.