answer: #Person1# asks #Person2# about the things #Person2# bought. #Person2# bought a bottle of perfume and a watch. #Person2# needs to pay #Person1# seven pounds altogether.
documents: #Person1#: Have you anything to declare?
  #Person2#: One bottle of perfume and a watch.
  #Person1#: Where did you buy it?
  #Person2#: In Boston.
  #Person1#: Do you travel a lot?
  #Person2#: Oh. . . I go to see my sister twice a year or so.
  #Person1#: Twice a year? How long has your sister lived in Boston?
  #Person2#: Nearly ten years.
  #Person1#: I see, that's a long time. How much was the watch?
  #Person2#: I can't remember, but I've got the receipt somewhere. Would you like to see it?
  #Person1#: Yes, I'd like to see the receipt. Oh! I see you bought the watch last week.
  #Person2#: Yes. Does that mean I'll have to pay duty on it?
  #Person1#: Yes, I'm afraid you will. Altogether on the watch and the perfume you owe me seven pounds.
  #Person2#: Ok. Here you are. Is that all right now?
  #Person1#: Yes, that's fine. I hope you enjoyed your stay in Boston?
  #Person2#: Yes, I did. I had a fine time.