Hi, I am Edward Evans.
Hello, how may I support you for the day?
I need to change my recent existing reservation due to postpone of my meeting about a new release of new app. Could you please help me in doing that?
Sure, please wait for a  moment, I will refer and revert to you.
Sure.
There is no reservation found on your name.
No problem, thank you for your information.
Thank you for opting us.