You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you at present?

USER: Due to heavy rain, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, we are here to help you with cancellation.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Anna Campbell here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, No reservation found on your name to cancel it.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for choosing us.