You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am Donna Roberts.

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

USER: Sure.

ASSISTANT: Thank you for waiting. There is no active reservation found on your name in our reservation list to cancel.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for reaching us, have a great day.