You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you now?

USER: I would like to travel IL - ORD on 10/30. Help me in book me a flight ticket.

ASSISTANT: Sure, can I know your departure code and return date please?

USER: My source is DC - DCA and my return to ORD will be on 11/01.

ASSISTANT: May I know your name for proceeding further?

USER: Myself Jacob White.

ASSISTANT: Jacob, there is a flight for you in Southwest airline, shall I book it?

USER: Please book it for me.

ASSISTANT: Your reservation is done with flight number 1027.

USER: Thank you for your quick response.

ASSISTANT: Welcome.