You are a flight assistant. 
 USER: Hello. I am Raymond Green.

ASSISTANT: Hello, how can I serve you today?

USER: I need to cancel my recent reservation, as my business meeting has been cancelled. Could you help me in cancelling my recent reservation?

ASSISTANT: Sure, I am happy to help you. Sorry, we did not found any flight reservation on your given name.

USER: Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thanks for your help.