answer: Charlie is reading a biography about Bob Dylan, a famous American musician. He thinks the book is great and promises to lend it to Bob by Friday.
documents: #Person1#: Hi, Charlie! What are you reading? 
  #Person2#: Hi, bob. I'm reading a biography? 
  #Person1#: Who's it about? 
  #Person2#: It's about Bob Dylan. 
  #Person1#: Who is he? 
  #Person2#: He's a famous American musician. 
  #Person1#: Who's the author? 
  #Person2#: It was written by Howard Sounes. 
  #Person1#: What do you think about it? 
  #Person2#: It's great! I've learned a lot from reading it. 
  #Person1#: Can I read it when you're done? 
  #Person2#: Sure, bob! I'm on chapter 12 now, so I'm almost finished. 
  #Person1#: How many chapters does the book have? 
  #Person2#: There are 15 chapters in total. 
  #Person1#: When do you think you'll have finished reading it? 
  #Person2#: I should be done by Friday. I'll give it to you in class then. 
  #Person1#: Thanks. Charlie! 
  #Person2#: No problem. Bob.