answer: #Person1# in Northward Airways helps Mary Jones to book a flight to Sydney, and #Person1# asks her to confirm the reservation at least two hours before departure time and pay for the economy ticket.
documents: #Person1#: Northward Airways, good morning. May I help you?
  #Person2#: Yes, do you have any flights to Sydney next Tuesday afternoon?
  #Person1#: One moment, please. . . Yes. There's a flight at 16:45 and one at 18:00.
  #Person2#: That's fine. Could you tell me how much a return flight costs? I'll be staying three weeks.
  #Person1#: Economy, business class or first class ticket?
  #Person2#: Economy, please.
  #Person1#: That would be 346 Euro.
  #Person2#: OK. Could I make a reservation?
  #Person1#: Certainly. Which flight would you like?
  #Person2#: The 16:45, please.
  #Person1#: Could I have your name, please?
  #Person2#: My name is Mary Jones, that's M-A-R-Y J-O-N-E-S.
  #Person1#: How would you like to pay, Ms. Jones?
  #Person2#: Can I pay at the check-in desk when I pick up my ticket?
  #Person1#: Yes, but you will have to confirm this reservation at least two hours before departure time.
  #Person2#: I see.
  #Person1#: Now you have been booked, Ms. Jones. The flight leaves at 16:45, and your arrival in Sydney will be at 9:00 a. m. , local time. The flight number is NWA 476.
  #Person2#: Thank you.