You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to cancellation of my dance event because of heavy snow-storm. I want to cancel my recent reservation with the name of Kenneth Walker.

ASSISTANT: Sure, please wait for few minutes, let me check and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: No problem.

ASSISTANT: Thank you, for reaching us.

USER: Thank you for your service.