You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please cancel my recent reservation? As my planed trip has been cancelled..

ASSISTANT: Sure. May I know your name please?

USER: Sure, my name is Carol Moore.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you.