Clerk:Good afternoon, Holiday Inn.
Customer:Hello,I′d like to book a double room for the nights of 23rd and 24th please.
Clerk:________.
本题考查在酒店订房时的对话。A问发生什么事了，用在这里不对。B和D适用于接待员或销售人员接待客人时的场景，只有选项C(请稍等)比较合适，故答案为C。