You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jonathan Taylor. I would like to cancel my reservation,help me in cancelling my reservation .

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: No reservation found on your name.

USER: Its ok, thank you for your help.

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