You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you aid me in booking a flight ticket from DCA to ORD?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: Sure, I would like to go on Sept 04th and return back on Sept 06th.

ASSISTANT: May I know your name?

USER: Myself Raymond King.

ASSISTANT: Do you have any other specifications?

USER: Ensure it is in the economy class.

ASSISTANT: Ok, wait for some time.

USER: Ok, make sure it is a single connecting flight.

ASSISTANT: We found Delta airlines with connecting flight and number 1007 fare of 100 with economy class, Shall I proceed for booking?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thanks for approaching us.

USER: Welcome.