You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kevin Green.

ASSISTANT: How can I assist you now? Glad to meet you Green.

USER: Please help me in cancelling my reservation.

ASSISTANT: Sure, I will help you with that. Please be hold on for a moment.

USER: Ok.

ASSISTANT: Sorry Green, no reservation found under your name to cancel.

USER: That's ok, thank you for the information.

ASSISTANT: My pleasure. Thank you for choosing us, have a great day.