answer: #Person1# helps #Person2# and #Person3# order dessert and drinks. Then #Person2# pays the bill, and #Person3# thanks #Person2# for the dinner.
documents: #Person1#: What would you have for dessert? 
  #Person2#: Well, what do you have? 
  #Person1#: Cakes, fruits and ice cream 
  #Person2#: Give me ice cream and cake. 
  #Person3#: I will have cake and fruits 
  #Person1#: Ok. thanks. and which would you liket to drink, coffee or tea? 
  #Person2#: I prefer tea. 
  #Person3#: I want coffee. 
  #Person2#: Thank you. 
  #Person1#: Thank you, please wait a minute. 
  #Person2#: Well, Waiter, give me the bill, please. 
  #Person1#: 32 dollars, sir. 
  #Person2#: Here's 35, keep the change. 
  #Person1#: Thank you very much sir, please come agian. 
  #Person3#: It's a nice restaurant, thank you for the dinner. 
  #Person2#: You are welcome.