answer: #Person1# helps Mr. Smith check in.
documents: #Person1#: Can I see your ticket please?
  #Person2#: Here you are.
  #Person1#: Ok, Mr. Smith. Do you have any bags to check?
  #Person2#: Just this one.
  #Person1#: And would you prefer a window seat or an aisle seat?
  #Person2#: Aisle, please.
  #Person1#: Boarding time is 10:20 am.
  #Person2#: What's the gate number?
  #Person1#: Gate 29C. Have a nice flight.