answer: #Person1# tells #Person2# the exchange rate and helps her to exchange some money.
documents: #Person1#: Can I help you, Madam?
  #Person2#: Yes, I'd like to exchange some US dollars into RIB.
  #Person1#: How much would you like to exchange?
  #Person2#: What's the exchange rate for RIB?
  #Person1#: It's US 100 for RMB 802 today.
  #Person2#: I'd like to exchange 3, 000.
  #Person1#: Fill out this exchange memo, please.
  #Person2#: Yes. Here you are.
  #Person1#: Wait a second, please. . . These are 24, 060 RMB and the receipt, please check them.
  #Person2#: All right, thank you so much, good-bye.
  #Person1#: Good-bye.