You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I would like to cancel my reservation due to cancellation of my meeting. Please help me with it.

ASSISTANT: Sure, I will help you to cancel your reservation. May I know your name?

USER: Reservation was done by the name Brain Moore.

ASSISTANT: Ok. Sorry, there is no reservation found on your name to cancel.

USER: It's ok, thanks for the information.

ASSISTANT: Welcome. Thank you for choosing us.