预定航班:有下周二去悉尼的航班吗?

Do you have any flights to Sydney next Tuesday afternoon?

Reservations clerk: Northwind Airways, good morning. May I help you?

Mary Jones: Yes, do you have any flights to Sydney next Tuesday afternoon?

Reservations clerk: One moment, please... Yes. There's a flight at 16:45 and one at 18:00.

Mary Jones: That's fine. Could you tell me how much a return flight costs? I'll be staying three weeks.

Reservations clerk: Economy, business class or first class ticket?

Mary Jones: Economy, please.

Reservations clerk: That would be