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

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my ticket due to preponed of my trip to New York.

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Thank you for information.

ASSISTANT: Thank you for choosing us.