You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please help me to book a flight ticket from ATL to DCA.

ASSISTANT: Sure, please provide your trip dates.

USER: My journey dates are from Sept, 27 to Sept, 29.

ASSISTANT: Do you need any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: May I know your name for reservation?

USER: Katherine Collins.

ASSISTANT: JetBlue Airlines is providing connecting flight on this route with a ticket fare of 200 and flight departs at 18:00 hours and arrives at 22:00 hours, shall I book your ticket in this flight?

USER: Please book it.

ASSISTANT: Your ticket is confirmed in flight 1009.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.