You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Ruth Carter. Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you with the flight reservation cancellation.

USER: Ok.

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

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you.