You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I am Joseph Phillips, can you help me to book a flight with 1 connection from DEN?

ASSISTANT: Sure, could you please share your destination airport code?

USER: I want to return from ATL at evening time.

ASSISTANT: Could I have your journey dates, please?

USER: My journey dates are Apr 15 and 17.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any other specifications?

USER: No, I did not have any other requirements.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found a connecting flight 1008 from Southwest airline has fare 100, the arrival time is 1:00 AM. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.