answer: Laura is going shopping today. #Person1# asks her to buy a ham sandwich for #Person1# at the store.
documents: #Person1#: Laura, what are you going to do today?
  #Person2#: I'm going shopping.
  #Person1#: What time are you leaving?
  #Person2#: I'm going to leave around 4 O'clock.
  #Person1#: Will you buy a ham sandwich for me at the store?
  #Person2#: OK.
  #Person1#: Do you have enough money?
  #Person2#: I'm not sure.
  #Person1#: How much do you have?
  #Person2#: 25 dollars. Do you think that's enough?
  #Person1#: That's not very much.
  #Person2#: I think it's OK. I also have two credit cards.
  #Person1#: Let me give you another ten dollars.
  #Person2#: Thanks. See you later.
  #Person1#: Bye.