answer: #Person1#'ll ring Mr. Robert later for he's busy.
documents: #Person1#: Hello, may I speak to Mr. Robert the Human Resources Manager?
  #Person2#: Wait a minute. I will get him here. Sorry, he is busy doing something. Why don't you give him a ring later?
  #Person1#: OK, that's fine. Thank you.
  #Person2#: You are welcome.