You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you now?

USER: I want to book a flight ticket from AUS to IAD, can you please help me in booking?

ASSISTANT: Sure, may I know your travel dates?

USER: My planned dates are Sept 21 and Sept 23.

ASSISTANT: Let me know your connection limit, please.

USER: I need a connecting flight.

ASSISTANT: May I know your class preference?

USER: I prefer economy class.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need to return during evening time.

ASSISTANT: Please, share me your name.

USER: Sure, Debra Phillips here.

ASSISTANT: Spirit airlines is providing you the connecting flight in economy class, which departs at 3 AM and arrives at 20 PM. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved with flight 1010.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.