You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: I'm Kenneth Young.

ASSISTANT: How can I help you Mr. Kenneth?

USER: Can you help me to cancel my recent reservation?

ASSISTANT: Yes, I can help you in cancelling your reservation. Please give me a second.

USER: Ok.

ASSISTANT: Sorry, I couldn't found any reservation on your name to cancel.

USER: Ok, thank you.

ASSISTANT: Thank you, have a good day.