You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Sure, I am Dennis Campbell.

ASSISTANT: Thank you. Please wait for a while, let me check your reservation status.

USER: Sure.

ASSISTANT: I'm happy to inform you that I have found a active reservation on your name and we have cancelled it.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.