3句英文任你选

What date and what number of the flight do you want to book?
您想订哪一天、哪趟航班的机票?

Would you like a single or a round-trip ticket?
您要买单程还是往返票?

Would you like to go business class or first class?
你要商务舱还是头等舱?

半个句型要记牢

Would you like ~(+ n. /to do) (你想……)

Tip:

订票时工作人员会问具体航班信息(时间，航班，票种等)，票种分为单程票(single/ one-way ticket)、回程票 (return ticket)、往返票( round-trip), 座位又分为头等舱 (first class)、商务舱 (business class)及经济舱(economy class)。