- To identify the caller we can say:
May I ask who's calling?
- To ask the name again we can say:
I'm sorry, I didn't catch your name. - To ask the caller to wait we can say:
Just a moment, please / One moment, please.
- To give a reason for absence we can say:
I'm sorry, but (name) is in a meeting/ at lunch.
- To leave a message we can say:
Can I take a message?