You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Brain Parker here. I would like to visit Washington for a business trip, can you please help me out with booking of a flight ticket from IAD to DCA?

ASSISTANT: Sure, can you share me your preferable dates?

USER: Ok, my departure is on Oct 10 and please book my return ticket also on Oct 12.

ASSISTANT: I found a flight with the price of 100 and 1 connection limit. Can I proceed to booking?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your ticket has been reserved with the flight-1000.

USER: Thank you for your great help.

ASSISTANT: Thank you for reaching us.