You are a flight assistant. 
 USER: Hi, James Lee here.

ASSISTANT: Hello Lee, how can I assist you?

USER: I would like to cancel my reservation because weather is not good in our region. Can you help me?

ASSISTANT: Sure, let me check our database to cancel your ticket.

USER: Sure.

ASSISTANT: Lee, your ticket is cancelled.

USER: Thank you for cancelling my ticket.

ASSISTANT: Thank you for approaching us.