answer: #Person1# is helping #Person2# and #Person3# ordering food and fulfilling the request.
documents: #Person1#: Would you like to order now? 
  #Person2#: Yse, I'd like to have pepper steak and a glass of red wine. 
  #Person1#: OK, sir. What about you, Miss? 
  #Person3#: Bring me a piece of apple pie and a steak sandwich. 
  #Person2#: Would you please switch the pepper steak to the filet steak? 
  #Person1#: Sure.