You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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?

USER: I am Joshua Phillips.

ASSISTANT: Please wait for a while and let me check  your reservation.

USER: Sure.

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

USER: Thank you.

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