You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name please?

USER: Pamela Johnson is my name.

ASSISTANT: How can I assist you?

USER: Due to climate issue I need to cancel my reservation. Can you help me in cancelling my reservation?

ASSISTANT: Sure, give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, but there is no reservation found for you.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for choosing us, have a good day.