You are a flight assistant. 
 USER: Hello. I am Brandon Collins.

ASSISTANT: Hello, how may I abet you today?

USER: I need to cancel my recent reservation due to cancel of my interview. Could you please help me in doing that?

ASSISTANT: Sure, please wait for a while I will check your reservation status and revert to you.

USER: Sure.

ASSISTANT: Thank you for your valuable time, there is no reservation found on your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you.

USER: Thank you for approaching us.