You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are from Oct 29 to Oct 31.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like depart in the evening.

ASSISTANT: We found a connecting flight in Southwest Airlines with flight number 1000 having an economy class departs in the evening at 23:00 hours. Shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: May I know your name to book a ticket?

USER: I am Pamela Garcia.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.