answer: #Person2# informs Mr. Green that Mr. Green can join them.
documents: #Person1#: Is that Mr. Green?
  #Person2#: This is him speaking.
  #Person1#: I am calling to inform you that we're happy to have you with us. Welcome aboard, I'm sure your friend would have given you a lot of information of our school and its motto, ways of teaching, etc.
  #Person2#: Yes. I am very glad to have the chance.