You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am John Allen, I want to cancel my ticket as my plan to meet my friend at New York is postponed to other place. Can you help me with cancellation?

ASSISTANT: Sure I would be happy to help you. Wait for some time I will check the status and get back to you.

USER: Sure.

ASSISTANT: Thanks for your precious time. There was no reservations found on your name.

USER: Ok, thanks for information.

ASSISTANT: Thanks for choosing ua.