You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Andrew Nelson, I want to cancel my flight ticket as my plan for a vacation is cancelled due to bad weather. Can you help me?

ASSISTANT: Sure, I can help you. Please, wait for a while let me check the reservation list.

USER: Sure.

ASSISTANT: Thanks for waiting. Your ticket has been cancelled.

USER: Thanks for your support.

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