answer: #Person2# deposits a check and gets some cash back with #Person1#'s assistance.
documents: #Person1#: What can I do for you?
  #Person2#: I need to make a deposit.
  #Person1#: Are you depositing cash or a check?
  #Person2#: I'm depositing a check.
  #Person1#: Please sign the back of the check.
  #Person2#: There you go.
  #Person1#: Do you want cash back?
  #Person2#: Yes, please.
  #Person1#: How much cash would you like?
  #Person2#: I want $ 150.
  #Person1#: Here's your $ 150.
  #Person2#: Thank you, and have a nice day.