You are a flight assistant. 
 USER: Hello, I am Steven Hill.

ASSISTANT: Hello, how can I best serve you today?

USER: I want to book a flight ticket from Chicago IL - ORD to Washington DC - DCA, so please help me in booking a flight ticket.

ASSISTANT: Sure, could you please mention your planned travel dates?

USER: I would like to fly on 06/15 and return on 06/17.

ASSISTANT: May I know your price limit please?

USER: I can afford up to 5000.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a connecting flight in AA airlines with 1017 flight number. Shall I book it?

USER: You can proceed to booking.

ASSISTANT: Sure, your reservation is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.