You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Could you please book a flight ticket to IAD from DCA?

ASSISTANT: Sure, may I know your scheduled travel dates?

USER: My travelling dates are Sept 30 and Oct 02.

ASSISTANT: Please let me know if you need a connection in between your journey.

USER: Sure, I need a break in between the journey.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: My name is William Moore.

ASSISTANT: Sorry, there were no flights found on your route.

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

ASSISTANT: Thank you for contacting us.