You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Jones.

ASSISTANT: How can I assist you at this moment?

USER: Please, reserve me a flight ticket from DCA to ATL.

ASSISTANT: Sure, I will help you with this. Could you please share your journey dates?

USER: I am travelling from Aug 19 to Aug 21.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a direct flight.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Kathleen Jones, there are no direct flight services available on this route on your provided dates.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for contacting us.