You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I need to cancel my recent reservation, can you please help me?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: May I know on whose name the ticket has been reserved formerly?

USER: Myself Barbara Phillips.

ASSISTANT: Sorry Barbara Phillips, there are no flights reserved on your given name formerly.

USER: That's ok, thank you for the information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.