You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I have to cancel my flight ticket booking that there is important meeting on the same date, so can you please cancel my flight ticket booking?

ASSISTANT: Sure, could you provide your name?

USER: My name is Brandon Young.

ASSISTANT: Sorry Young, no reservation found on your name in our database.

USER: Ok, I think my flight ticket booking is not done properly, thank you for your information.

ASSISTANT: Do you need any other help?

USER: No, that's fine.

ASSISTANT: Ok, thank you for reaching us.

USER: You are welcome.