You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Barbara Lewis.

ASSISTANT: Yes, Lewis.

USER: I would like to cancel my reservation as I am not feeling well, can you please help me out?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Thank you.

ASSISTANT: Sorry Lewis, there is no active reservation on your name.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us.