You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: Owing to an emergency, I want to cancel my reservation. Can you help me with cancelling?

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

USER: Sure, my name is Timothy Martin.

ASSISTANT: Thanks for providing your name. Please wait a moment,I will check and revert to you.

USER: Sure.

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

USER: Ok, not an issue.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your information.

ASSISTANT: Have a great day.