answer: #Person2# helps Mr. Lee exchange Chinese currency into German currency. Mr. Lee pays a small transaction charge for this service.
documents: #Person1#: I would like to exchange Chinese money into German currency please.
  #Person2#: Certainly. How much will you be exchanging today?
  #Person1#: How about 50, 000 RIB. Would that be a problem?
  #Person2#: That's a hefty amount. But that should have no problem at all. You should be aware that there is a ten-percent service charge, though.
  #Person1#: Ten percent! Now that's hefty!
  #Person2#: Wait a minute. . . do you have an account with us?
  #Person1#: Yes I do; here is my account number.
  #Person2#: For members, there is a small transaction charge, but it's only 5 dollars per transaction. Any particular denomination?
  #Person1#: 3, 000 marks in hundreds and the rest in tens and twenty's, please.
  #Person2#: Here you are Mr. Lee. Will there be anything else?