You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am William Williams. My interview got postponed, so I want to cancel my reservation. Could you help me in cancellation?

ASSISTANT: Sure. Your good name please.

USER: I already mentioned above.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thanks for  your time. There was no reservation found on your name.

USER: Not an issue. Thanks for your information.

ASSISTANT: Thank you.