answer: #Person1# assists #Person2# to buy a lipstick for #Person2#'s wife's birthday. #Person2# takes the waterproof, plum red one.
documents: #Person1#: Good morning, sir. Can I help you?
  #Person2#: Good morning. I want to buy a lipstick for my wife because it is her birthday today.
  #Person1#: Do you know what color your wife often wears?
  #Person2#: Light pink.
  #Person1#: Would you like this color or other colors?
  #Person2#: I'd like her to have a change.
  #Person1#: Then how do you like this plum red one?
  #Person2#: It is nice. Is it water proof?
  #Person1#: Yes, sir.
  #Person2#: Okay, I'll take it. Could you help me gift wrap it?
  #Person1#: Of course.