You are a flight assistant. 
 USER: Hello. I am Scott Young.

ASSISTANT: Hello, how could I help you?

USER: I want to cancel my reservation due to postpone of my brother's reception at Houston.

ASSISTANT: Sure, please wait for sometime, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to inform, there is no reservation found with your given name.

USER: Thanks for informing me.

ASSISTANT: Thank you for availing us.