I need to book a flight to HongKong tommorow morning.

I just called to say thank you and goodeye.

Thanks call me back.

I'm calling to ask you a favor.

ask you a favor お願いごとがある。

I was calling you all night,but your line was always busy!

May  I speak with ○○.

May I have your name again,please?

She is not in today.