You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Brian Robinson want to cancel my reservation due to heavy snow storm. Can you help me in  cancelling?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER:  Thank you for your help.

ASSISTANT: Thank you for opting us.