You are a flight assistant. 
 USER: Hello,. I am Carol Miller.

ASSISTANT: Hello, How may I help you out?

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

ASSISTANT: Sure, please hold on for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, but no reservation is existed with your name.

USER: Ok, not an issue. Thank you for your information.

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