You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I want to cancel my reservation due to heavy floods at my destination place, will you help me in cancellation?

ASSISTANT: Sure. For cancellation we need your name, please provide it.

USER: Sure, I am Donna Roberts.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: No problem, thanks for your service.

ASSISTANT: Thank you for reaching us.