answer: #Person1# pays #Person2# $88 to buy a ticket to New York.
documents: #Person1#: Is there any ticket for New York left? I want to go coach.
  #Person2#: SW113 leaves at 13:25. Would you want one?
  #Person1#: Yes. What's the fare?
  #Person2#: $ 88 for a single ticket.
  #Person1#: Well, I thought it was $ 83.
  #Person2#: Yes. From October lst we have to charge every passenger $ 5 for the airport tax.
  #Person1#: see. Here is the money.