answer: #Person2# is checking in and #Person1# tells #Person2# about the baggage and carry-on allowance of a first-class passenger and says passengers will be charged for any overweights.
documents: #Person1#: Good morning. Your ticket and passport, please?
  #Person2#: Here you are.
  #Person1#: Do you have any baggage to check in?
  #Person2#: Yes, one box.
  #Person1#: Would you please put it on the scale?
  #Person2#: OK. By the way, can you tell me how many kilos of free baggage each passenger is allowed?
  #Person1#: The baggage allowance is different according to the class of your ticket. What class are you travelling?
  #Person2#: First-class.
  #Person1#: For a first-class passenger, the free baggage allowance is forty kilos.
  #Person2#: How many pieces of baggage can I carry on to the plane?
  #Person1#: Passengers holding first class tickets may carry 2 pieces within the total weight of 5 kg onto the plane.
  #Person2#: If my baggage exceeds the allowance, what should I do?
  #Person1#: If the checked baggage is over the allowance, we will charge you for the overweight.
  #Person2#: I see. Thank you very much for your information.
  #Person1#: You're welcome. Your boarding pass and baggage check, please.
  #Person2#: Goodbye!