answer: #Person1# helps #Person2# cash the check to buy traveler's checks.
documents: #Person1#: May I help you?
  #Person2#: I'd like to cash this check, please.
  #Person1#: Do you have an account with us?
  #Person2#: Yeah. Here's my identification card.
  #Person1#: Do you want large or small bills?
  #Person2#: Actually, I want to buy some traveler's checks.
  #Person1#: What denomination?
  #Person2#: Twenties would be fine.
  #Person1#: Do you want the whole amount in traveler's check?
  #Person2#: Yes, please.