answer: #Person1# helps #Person2# to book a round-trip air ticket from Montreal to Toronto.
documents: #Person1#: Eastern Airlines Agency. Good Morning.
  #Person2#: Good Morning. I want to book a round-trip ticket.
  #Person1#: Where are you flying from, and what's your destination, sir?
  #Person2#: From Montreal to Toronto.
  #Person1#: What day do you want to fly?
  #Person2#: I want to leave on Monday the 24th and return on Friday. Do you have any flights in the afternoon?
  #Person1#: Yes, we do. By the way, will that be first class or economy class? How many people are there in your party?
  #Person2#: Just myself. And I'd like economy class.
  #Person1#: All right, there are seats still available. Would you prefer a window, aisle or center seat?
  #Person2#: Window, please. Thank you.