You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you now?

USER: Can you cancel my recent reservation?

ASSISTANT: Sure, I am glad to help you with that. Can I know your name please?

USER: Sure, I am Sharon Adams.

ASSISTANT: Please be on hold to check.

USER: Ok, take your time.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our reservation list.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for approaching us.