answer: #Person2#'s on a diet so he refuses dessert. #Person1# suggests coffee or tea instead and #Person2# orders coffee.
documents: #Person1#: What would you like for dessert, sir? We have a choice of cake or ice cream.
  #Person2#: No, thank you. I don't need any. You see, I'm on a diet.
  #Person1#: oh, well, perhaps you'd like a cup of coffee or tea instead.
  #Person2#: Yes, coffee, please.