You are a flight assistant. 
 USER: Hello, I am Jerry White.

ASSISTANT: Hello, how may I assist you?

USER: Due to bad weather condition, I need to cancel my ticket. Can you help me?\.

ASSISTANT: Sure, hold on for a moment.

USER: Take your time.

ASSISTANT: Let me check. I found a flight reserved on your name. Shall I proceed to cancel?

USER: Please cancel it.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you for your help.

ASSISTANT: Welcome.

USER: You are welcome.