answer: #Person1# wants to buy an inexpensive acoustic guitar to play rhythm guitar. #Person2# recommends a steel-string guitar. #Person1# will take it, together with a book and guitar picks.
documents: #Person1#: Excuse me,I'd like to buy a guitar.Could you recommend one? 
  #Person2#: Sure.Do you want an acoustic one or an electric one? 
  #Person1#: An acoustic one. 
  #Person2#: Are you looking to get a steel-string or a classical? 
  #Person1#: What's the difference? 
  #Person2#: Well,a classical guitar has nylon strings and its neck is bigger than a steel-string guitar's.It's best suited for finger picking .A steel-string is best for playing chords. 
  #Person1#: I'm mainly interested in learning to play rhythm guitar. 
  #Person2#: In that case,I'd suggest a steel-string guitar.The best one we have is the Ovation. 
  #Person1#: This one's a little too expensive for me.I'd prefer something cheaper for now.When I've learned to play ,I might get a better one. 
  #Person2#: In that case,how about this one?It's inexpensive but it's still well made and easy to play. 
  #Person1#: Hmm.All right,I'll take it,and this book on how to play the guitar as well. 
  #Person2#: You should also get a couple of guitar picks. 
  #Person1#: Oh,right.Thanks for your help. 
  #Person2#: Don't mention it.