answer: #Person1#'s taking three shirts at a time and trying them on with #Person2#'s assistance.
documents: #Person1#: I really like this shirt, but I am afraid it is not my size.
  #Person2#: Try it on first. If it is the wrong size, you can try another one.
  #Person1#: Oh, where is the changing room?
  #Person2#: It's over there by the mirror.
  #Person1#: Can I take two shirts to try on now?
  #Person2#: Yes, you can take three shirts at a time to try on.
  #Person1#: I just want to try on these two that I like.
  #Person2#: OK, I'll wait here to help you when you have finished.