answer: #Person1# helps #Person2# order a medium-sized pizza with tuna on it. #Person2# will take it away.
documents: #Person1#: Welcome, how may I help you today? 
  #Person2#: I'm ask for a pizza, please. 
  #Person1#: Then you will be happy to here that today all our pizzas are on sale. Two for one. 
  #Person2#: You're right, that is great. 
  #Person1#: What size would you like? 
  #Person2#: Medium one will be perfect, thank you 
  #Person1#: Which kind do you want? 
  #Person2#: I like seafood on my pizza. 
  #Person1#: We have two seafood pizzas. Tuna and crab. 
  #Person2#: Tuna sounds good today. 
  #Person1#: Would that be for here or take away? 
  #Person2#: That would be to go. 
  #Person1#: That'll be in a ten minutes. Please sit over there, and I'll call you over as sooner as it's ready. 
  #Person2#: No problem.