B1
an arrangement that you make to have a seat on an aircraft, a room in a hotel, etc.
Dictionary examples:
I made a reservation for my pet rock at a five-star hotel. (0.0)
I accidentally made a reservation for a romantic dinner with my cat. (0.0)
I made a reservation for my houseplant at a fancy hair salon. (0.0)
I made a reservation at the restaurant for 7 o’clock. (28.9)
Please confirm your reservation two days in advance. (47.2)