You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to cancel my reservation due to heavy snowfall at my destination place, so please help me in cancellation.

ASSISTANT: Sure, may I know your name to check the status and revert to you?

USER: Sure, I am Edward Young.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We could not find any reservation by the name you provided.

USER: No problem, thanks for your effort.

ASSISTANT: Thank you for picking us.