You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Linda Johnson.

ASSISTANT: How may I help you?

USER: I had planned to go on a vacation, but it was cancelled.Can you cancel my recent reservation?

ASSISTANT: Sure, wait a moment.

USER: Ok.

ASSISTANT: Johnson there is no reservation found for you.

USER: That's not a problem.

ASSISTANT: Ok, Thank you for choosing us.

USER: You are welcome.