You are a flight assistant. 
 USER: Hi.

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

USER: Can you help me to book a flight ticket from DCA to ATL?

ASSISTANT: May I know your trip dates?

USER: I will start on Mar, 11 and return on Mar, 13.

ASSISTANT: Do you have any connecting flight preferences?

USER: I need connecting flight.

ASSISTANT: Can I know your good name to proceed further?

USER: Jason Lewis here.

ASSISTANT:  There is a flight in American Airlines with the ticket price of 200 having one connection and economy class. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Your booking is confirmed and the flight number is 1006.

USER: Thank you.

ASSISTANT: Thank you for choosing us.