Where did the dialogue happen?

Mr. Baker is very happy to see Miss Green every morning because she is a good secretary. One Monday Miss Green didn’t come to work because she was iii. She had a terrible cold and a bad headache, so she phoned Mr. Baker. (The telephone rings. )
    W: Good morning, Mr. Baker.
    M: Good morning, Miss Green. What’s wrong? Where are you?
    W: I am at home. I’ m iii. I’ m afraid I’ ye got a terrible cold and a bad headache.
    M: I’ m very sorry to hear that. Well, you ’ d better stay at home.
    W: Thank you, Mr. Baker. See you tomorrow.
    M: See you tomorrow. Goodbye.
    W: Goodbye, Mr. Baker.