Hotel booking is the process of reserving a ROOM in a hotel for a certain period of time. The two crossword solutions for the term 'hotel booking' are 'SUITE' (5 letters) and 'ROOM' (4 letters). A SUITE is a large, luxurious ROOM that typically includes a bedroom, living area, and bathroom. A ROOM is a smaller space that usually just includes a bed and bathroom. Both suites and rooms can be booked through hotel booking services.