You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I assist you?

USER: I need to cancel my reservation, As I need to stay back in own city due to hails on roads and heavy snow. Can you help me with cancellation?

ASSISTANT: Sure,may I know your name?

USER: My name is Joseph Campbell.

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

USER: Not a problem, thank you.

ASSISTANT: Thank you.