answer: #Person2# buys eggs and some green tea with #Person1#'s assistance.
documents: #Person1#: Good evening. Can I help you?
  #Person2#: Yes, please. I'd like some eggs.
  #Person1#: Eggs? OK. How many?
  #Person2#: A dozen, please.
  #Person1#: Here you are. Anything else?
  #Person2#: Yes. Do you have any green tea here?
  #Person1#: Yes. How much do you want?
  #Person2#: Could I have half a pound?
  #Person1#: Certainly. Here you are.
  #Person2#: How much altogether?
  #Person1#: Let me see. One pound fifty, please.
  #Person2#: Thank you.