You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brain Nelson.

ASSISTANT: How can I  help you?

USER: Can you please help me with cancelling my recent reservation?

ASSISTANT: Just a moment please.

USER: Ok.

ASSISTANT: I am sorry no reservation found on your name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for choosing us.