over·book 
/ˌoʊvɚˈbʊk/ verb
over·books; over·booked; over·book·ing /ˌoʊvɚˈbʊk/ verb : to allow too many people to buy tickets or to reserve seats, tables, rooms, etc. [no obj] ▪ The hotel/restaurant overbooked. [+ obj] ▪ The flight was overbooked, and I got bumped off. ▪ The airline overbooked the flight. ▪ The doctor's office called and said that they overbooked the appointments for today. — compare double-book
