You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you cancel my recent reservation which I have done previously with my name Patrick Walker.

ASSISTANT: Sure Patrick, wait a moment please.

USER: Sure, get with my status of reservation.

ASSISTANT: Sorry to say that, there is no reservation found on your name.

USER: It's ok, no issues. Thanks for checking.

ASSISTANT: Thank you for choosing us.