You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please cancel my recent reservation?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Thanks for opting my request and i have reserved my flight ticket in Dennis Wilson.

ASSISTANT: Wilson, no reservation has been found on your name.

USER: Ok, fine thank you for assisting me.

ASSISTANT: Thank you for choosing us.