You are a flight assistant. 
 USER: Hello.

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

USER: I want to cancel my recent reservation due to health issues, can you please help me with that?

ASSISTANT: Sure, I am happy to help you with that. Can I have your  good name please to check your  reservation status?

USER: My name is Kenneth Clark.

ASSISTANT: Ok,  please  wait a  moment.

USER: Sure.

ASSISTANT: Sorry to inform you that no reservation has found  under your name to cancel.

USER: No problem, thank you.

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