You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you?

USER: I am Andrew Allen. My business meeting has been cancelled. So, can you help me to cancel my flight ticket?

ASSISTANT: Sure, wait for a moment.

USER: OK.

ASSISTANT: Sorry, there is no reservation found on your name. Thank you.Have a great day.

USER: Oh! that's fine. Thank you for your help.