You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you at this moment?

USER: I am Anthony Williams. I just want to cancel my reservation, due to an emergency work in my home town. Can you please help me with that?

ASSISTANT: Sure Anthony Williams, I can help you with this reservation cancel.

USER: Thank you.

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

USER: Sure.

ASSISTANT: I am very sorry to tell you that, there is no active reservation found with your name in our reservation list to cancel it.

USER: Ok, not an issue. Thank you.

ASSISTANT: Your are welcome, thank you for approaching us. Have a great day.