Hello.
Hello, may I know your name please?
I just want to change my recent reservation because my business trip postponed. can you help me for that?
Sure, please provide me your name?
I am Margaret Hall.
Are you sure, that you have booked with this name?
Yes.
Then sorry, there is no reservation.
It's ok.
Do you want any more information please?
No thanks.
Thank you and have a nice day.