answer: #Person1# tells Mr. Brooke Professor Johnson called and asked him to call back. #Person1# suggests dialing 114 to get Johnson's hotel's number and changes a dollar for him to use the public phone.
documents: #Person1#: Excuse me, Mr. Brooke, I almost forgot there was a phone message here for you. Professor Johnson called and asked you to call him back.
  #Person2#: Where is he now? Do you know?
  #Person1#: He's staying in the Blackwood Hotel room 509.
  #Person2#: Thank you. Do you happen to have the number of the Blackwood Hotel?
  #Person1#: I'm sorry I don't, but you can get it from information just dial 114.
  #Person2#: Oh, and could I trouble you to change a dollar?
  #Person1#: Alright. Here is your change. By the way, the public phone is over there on your right.
  #Person2#: I see, thanks.