You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I want to cancel my recent reservation reservation. Can you please help me out?

ASSISTANT: Sure, I will help you in flight ticket cancellation.

USER: Ok.

ASSISTANT: May I know your name please?

USER: Myself Dennis Miller.

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

USER: Ok, thank you for your information.

ASSISTANT: Thank you.