You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I will help you with the flight ticket cancellation. May I know your name please?

USER: My name is Joseph Collins.

ASSISTANT: Joseph, thanks for waiting. But I am sorry to say that there is no flight reservation on your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thanks for reaching to us.