Hello.
Hello. How may I support you at this moment?
Amy Davis here. I would like to change my existing reservation, due to  postponed of our office meeting.
Sure, I am here to help you. Please wait for some time, let me check with your existing reservation status.
Sure, take your time.
There is no existing reservation found on your name in our records.
No issue, thank you for the information and your time.
Thank you for reaching us.