Who is asked to call back? What happens to the phone call?

M: Peterson and Taylor. Can I help you?
F: Yes, this is Isabel Hawkins from R & D. Can I speak to Dorothy Borrow, please?
M: I am afraid she is out at the moment. I am the secretary, Francis Gregory. Can I take a message?
F: Yeah, ask her to call me back this afternoon.  My number is 345 -517 -7563. Thank you.
M: You are welcome.

F: Hello, NewBright Packaging. Can I help you?
M: Hello, this is Peter Johnson, could I speak to Marsha Lee, please?
F: Hold on please, I’ll just try her office .... Hello, I’m afraid she’s in a meeting. Can I take a message?
M: It’s OK. I’ll try again tomorrow morning.