Make the conversation below more polite by changing the underlined words.
A: Hello?
B: Hi. Is Kurt there?
A: Who’s calling?
B: This is Martin.
A: OK, hang on.
B: Sure.
A: Sorry, he is not in. Can I take a message?
B: No, thanks. I’ll call back later.

Hi. Is Kurt there? →

Who’s calling? →

hang on. →

Can I take a message? →