overbook
verb [ I or T ]
uk/ˌəʊvəˈbʊk/ us COMMERCE
to sell more hotel rooms, seats on an aircraft, etc., than are available:
The hotel was overbooked.
The airline had overbooked and we were told we would have to take the next flight.
overbooking
noun [ U ]
Passengers resent being bumped from flights due to overbooking.