Hello.
Hello, How may I help you?
My name is Debra Garcia.
Yes, tell me. What can I do for you?
My business meeting has been cancelled, so I would like to cancel my recent  reservation. Can You please help me with that?
Sure. Wait a minute. I will check and let you know.
Sure.
You: May be your ticket is not booked properly. That's why, I didn't found any reservation with your name.
That's ok. Thank you for the information.
Thank you.