You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER:  I need to cancel my recent reservation due to my scheduled examination dates has been postponed.

ASSISTANT: Sure, may I know your good name?

USER: I made a reservation on this name Raymond Adams.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thanks for the information.