answer: #Person2# checks #Person1#'s bag and tells #Person1# there's no need to pay duty on personal belongings.
documents: #Person1#: Here ' s my passport. I'm a visiting scholar.
  #Person2#: Do you have anything to declare?
  #Person1#: No, these are all my personal effects.
  #Person2#: What's in the bag? Would you mind opening the bag?
  #Person1#: Not at all. I don't know what's dutiable. Do I have to pay duty on things for my own use?
  #Person2#: NO. You don't have to pay duty on personal belongings.
  #Person1#: Thank you.