double-book
/ˈdʌblˈbʊk/verb
with obj.(一般作 be double-booked)
1- inadvertently reserve (something, especially a seat or a hotel room) for two different customers or parties at the same time（因疏忽）将（某物, 尤指座位或旅馆房间）同时预订给两个顾客（或团体）：
the hotel was double-booked.
那旅馆被重复预订了。
1.1
- book (someone) into a seat or room that is already reserved for another.将已订出座位（或房间）再预订给（某人）。