answer: #Person2# is looking for something for #Person2#'s girlfriend and #Person1# recommends a nice silk evening dress. #Person2# pays for it by credit card.
documents: #Person1#: Can I help you?
  #Person2#: Oh, I'm just looking, thanks. Well, actually, I'm looking for something for my girlfriend.
  #Person1#: And what sort of thing are you looking for?
  #Person2#: I don't really know. A dress?
  #Person1#: Right. What color does your girlfriend usually wear?
  #Person2#: Oh, dear...
  #Person1#: OK, what color are her eyes?
  #Person2#: Green.
  #Person1#: Right, purple suits people with green eyes. Now, what size is she?
  #Person2#: Um, well, sort of, she isn't very big, but she's not particularly small. That'll be medium then.
  #Person1#: Well, we have this rather nice silk evening dress here...
  #Person2#: Good, I'll take it. Thank you. How much is it?
  #Person1#: That's 70 pounds, sir. How would you like to pay?
  #Person2#: Seventy? By credit card, please.
  #Person1#: Fine. If you could just sign...
  #Person2#: Here you are. Goodbye.