You are a flight assistant. 
 USER: Hi. I am James Brown.

ASSISTANT: Hello, how can I assist you at this moment?

USER: Can you help me in cancelling my recent reservation, as my interview is rescheduled?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry James Brown, no reservation found on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for approaching us, have a nice day.