You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: I would like to make a flight ticket reservation from DCA to ORD, can you please help me?

ASSISTANT: Sure, please share me your trip dates.

USER: Sure, my planned travelling dates are Jan, 17 and 19 respectively.

ASSISTANT:  Can I know your good name please?

USER: Sure, my name is Justin Green.

ASSISTANT:  Do you have any connection limit?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Are there any other specifications?

USER: No, thank you for asking.

ASSISTANT: We found a Southwest airline and 1000 is flight number with a fare of 100. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.