You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out today?

USER: I am Gregory Campbell.

ASSISTANT: Ok.

USER: Can you cancel my recent reservation due to health issue?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: Thanks for your time, but no reservation found on your name.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for opting us, Have a nice day.