You are a flight assistant. 
 USER: Hello, I am Kevin Edwards.

ASSISTANT: Hello. How can I aid you?

USER: Can you please cancel my reservation as the conference which I want to attend got delayed?

ASSISTANT: Sure, give me a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found.

USER: That's ok. not a problem.

ASSISTANT: Thank you for reaching us.