answer: #Person1# helps #Person2# to check in for the flight to New York.
documents: #Person1#: Good morning, sir. Can I help you?
  #Person2#: Yes, I need to check-in for the eleven 20 flight to New York, please.
  #Person1#: O. K. Ticket, please.
  #Person2#: Here you are.
  #Person1#: Would you like a window or an aisle seat, Mr. Smith?
  #Person2#: I want an aisle seat as close to the exit door as possible, please.
  #Person1#: Very well. Do you have any bags to check?
  #Person2#: No, I just have this one small bag.
  #Person1#: Here you are, seat 12c. Please go to gate 23 after passing through the security checkpoint.
  #Person2#: Thank you.
  #Person1#: Have a nice day.
  #Person2#: You, too.