Hello.
Hello, how can I help you?
I want to cancel my recent reservation  due to the sudden postpone of my exams. Can you help me with that?
Sure, may I know your good name?
I am Rebecca Gonzalez.
Please wait for a moment. I will check and get back to you.
Sure.
Sorry to say that, no reservation was found with your good name.
Ok, no issues.
Thank you for opting us.