Hi.
user
Hello, how can I help you today?
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 good name?
assistant
Robert Lewis here.
user
Please wait for a moment.
assistant
Ok.
user
Sorry to say that, no reservation was found with your good name.
assistant
That's Fine, Thank you for the information.
user
Thank you for reaching us.
assistant