Mary：
I'd like to make a reservation to New York for next Monday.
我想预定一张下星期一去纽约的机票。
Clerk：
Just a second and I'll check the schedule.
请稍等，我查一下时刻表。
Mary：
I'll need an economy ticket with an open return.
我要一张经济舱，回程时间不定的来回票。
Clerk：
TWA has a flight leaving at 9:00.
TWA有一班飞机，9点起飞。
Mary：
I guess that's O.K. What time should I check in?
我想很好。我应该在什么时候登机？
Clerk：
You have to be there half an hour before departure time.
你要在起飞前半小时到。
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