answer: #Person1# helps #Person2# and #Person3# find the men's department and find a sport shirt in the medium for #Person3#. They will take the shirt.
documents: #Person1#: Hi. Can I help you with something? 
  #Person2#: Yes, please. We're looking for the men's department. 
  #Person1#: It's right over there, by the escalator. 
  #Person3#: Here we are . . . and here are the sport shirts. 
  #Person2#: Look at this one. The color is perfect for you! 
  #Person3#: I like it, too. How much is it? 
  #Person2#: It's on sale for $19. 98. 
  #Person3#: That's a good price. But I think they only have it in large. 
  #Person2#: Excuse me! Could you help me? 
  #Person1#: Sure. What can I do for you? 
  #Person2#: Does this shirt come in medium? 
  #Person1#: Yes, it does. Here's a medium. 
  #Person3#: Great. We'll take it. 
  #Person1#: Will that be cash or charge?