Hello.
Hello. How can I help you today?
Can you please change my existing reservation as my plan to attend a meeting got postponed?
Sure, I am here to help you with that. May I know your name  please?
I am Steven Baker.
Please wait for a  moment, let me check your previous reservation status.
Sure.
Thank you for waiting.
Ok.
There is no active reservation found on your name in our reservation list to change it.
Ok, no problem.
Thank you for reaching us, have a nice day.