answer: #Person1# helps #Person2# to check in and tells #Person2# that he needs to pay for an excess luggage charge. #Person1# then gives #Person2# his luggage check, boarding pass and ticket. #Person2# is nervous about his first flight and #Person1# comforts #Person2#.
documents: #Person1#: Good morning, sir, where are you going?
  #Person2#: I'm going to England by flight B. E. 987.
  #Person1#: When is your flight?
  #Person2#: 10:00 a. m. When am I supposed to check in?
  #Person1#: We are checking in. May I have your ticket? And your health certificate and your luggage, please.
  #Person2#: Here you are.
  #Person1#: Are you keeping this small bag as carry-on luggage, sir?
  #Person2#: Yes.
  #Person1#: You must weigh that as well.
  #Person2#: All right.
  #Person1#: Your luggage is two pounds over, I am afraid there'll be an excess luggage charge, sir.
  #Person2#: How much must I pay?
  #Person1#: It's 10 yuan.
  #Person2#: Here you are.
  #Person1#: This is your luggage check, which you must show when you disembark at your destination, and here is your boarding pass and your ticket.
  #Person2#: Thanks.
  #Person1#: Now please wait until your flight is called. There are about twenty-five minutes to go.
  #Person2#: I'm a little nervous. I have never flown before.
  #Person1#: There is nothing at all to worry about. Once you're in the air, it's just like sitting in your own living room. It's going to be a very pleasant flight.