answer: #Person1# helps #Person2# book an economy class air ticket to Honolulu and a return ticket to Chicago which costs $476 together.
documents: #Person1#: United Airlines. May I help you?
  #Person2#: Yes. I'd like to book some tickets for Flight 220, leaving for Honolulu on December 22 at 7:30 in the evening.
  #Person1#: Do you want to fly first or economy class?
  #Person2#: Economy, please.
  #Person1#: Will this be a one-way trip?
  #Person2#: No, round trip back to Chicago. By the way, do you have any direct flights coming back?
  #Person1#: Yes, we do. Flight 515, leaving Honolulu at 3:00 pm, flies nonstop back to Chicago.
  #Person2#: That will be perfect. What's the exact air fare?
  #Person1#: The round trip economy fare from Chicago to Honolulu is $476 during the high season.
  #Person2#: All right, here's the money.