answer: #Person2# tells #Person1# #Person1# cannot take the book out because it's been reserved by Dr. Smith.
documents: #Person1#: May I take this book out? I need it work on my paper for Dr. Smith's history class.
  #Person2#: I'm afraid not. The book has been put on reserve by Dr. Smith. Unless you have his written permission, we won't lend it out.