You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I will help you with that. May I know your name to check reservation status?

USER: Ok, Margaret Johnson here.

ASSISTANT: Ok, please be hold on for a moment.

USER: Sure.

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

USER: Ok, no issues. Thank you for helping me.

ASSISTANT: Most welcome. Thank you for choosing us, have a good day.

USER: Most welcome.