answer: #Person1# wants to get a Father's Day gift. #Person2# recommends a wallet but #Person1# can't afford it. #Person2# then suggests a tie on sale and #Person1#'ll take it.
documents: #Person1#: I'm looking for a Father's Day gift. Can you help me?
  #Person2#: OK. How about getting your father a new wallet? This brown leather one is only $25.
  #Person1#: Emm, the design is good and the color is my father's favorite. However, I don't have that much money. I'm just a student.
  #Person2#: OK. How much do you have?
  #Person1#: $10. I have been helping my mom around the house for the past week to earn some money. This is all I have.
  #Person2#: Hmm, how about this tie?
  #Person1#: That's really pretty, but the price tag says $15. I know I don't have that much.
  #Person2#: Well, the tie is on sale now. It costs $8 only.
  #Person1#: Oh, thanks. I'll take it.