You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to attend a Seminar in Chicago. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, we are here to help you. May I know your trip dates?

USER: My travelling dates are Aug 03 and Aug 05.

ASSISTANT: Do you need any break in your journey?

USER: I prefer single connecting flight.

ASSISTANT: Where you need to catch the flight and land?

USER: My airport codes are ATL and ORD.

ASSISTANT: At what time, you want to travel?

USER: I want to depart in afternoon.

ASSISTANT: Do you have any other specifications?

USER: I prefer single connecting flight.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: Anyway, thanks for the information.

ASSISTANT: For documentation, may I know your name please?

USER: Carolyn Taylor.

ASSISTANT: Thank you for opting us.