You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: Please cancel my recent reservation due to some health issues?

ASSISTANT: Sure, I will help you with that. May I know your good name please?

USER: Sure, I am Joshua Collins.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

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

ASSISTANT: Thank you for visiting us, we hope see you again.