Hi.
user
Hello, how may I serve you  at this moment?
assistant
I want to cancel my recent  reservation due to sudden cancellation of my trip. Can you help me?
user
Sure, may I know your name please?
assistant
Edward Jones here.
user
Ok, please wait for a while.
assistant
Ok.
user
Sorry to inform you that, we could not find any reservation on your name.
assistant
That's Fine, Thank you.
user
Thank you for approaching us.
assistant