You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Sarah Parker. My family tour trip got postponed, so I want to cancel my reservation. So please help me in the cancellation.

ASSISTANT: Sure, may I know your good name please?

USER: Already I mentioned above.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel.

USER: Not an issue. Thank you.

ASSISTANT: Thanks for opting us.