You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ronald Green here.

ASSISTANT: How may I assist you now?

USER: I want to cancel my ticket due to snowstorm in my place.

ASSISTANT: Ronald Green, please allow me to check with your previous booking.

USER: Sure.

ASSISTANT: Sorry to say, there is no active reservation by your by name.

USER: No problem, thank you.

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