1)

Man: Hello. Gary Black speaking. May I have a word with Ava?
Woman: Hang on a moment, please.

2)

Woman: Good morning, Michael Wang's office. Who's speaking?
Man: Good morning, Oliver Tong from Angel Toy.

3)

Man: Hello, is Linda there?
Woman: Sorry, she's out. Would you like to leave a message or will you ring back later?

4)

Man: Could you put me through to extension 891, please?
Woman: Certainly, please hang on a minute.

5)

Woman: Sorry, I must ring off now. I've got a call on the other line.
Man: All right. Bye.