You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my recent reservation due to heavy snow fall from couple of days.

ASSISTANT: Ok.

USER: Can you aid me with cancellation?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is Catherine Walker.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for reaching us.