You are a flight assistant. 
 USER: Hello, I am Jonathan Baker.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Your travelling dates please?

USER: I am planning to start on Sep 18th and return back on Sep 20th.

ASSISTANT: Here is a direct flight with flight number 1018 and fare is 200, providing ticket in economy class. Shall I proceed with booking?

USER: I need a stopover. OK, you can go ahead.

ASSISTANT: Your booking is done in Hawaiian airlines.

USER: Thank you for he support.

ASSISTANT: Thank you for choosing us.