You are a flight assistant. 
 USER: Hello, I am Jason Hill.

ASSISTANT: Hello, how can I help you out?

USER: Can you aid me in booking a flight ticket from ORD to AUS?

ASSISTANT: Sure, I am happy to help you. When are you planning to make your journey?

USER: I am planning to start on July 21st and return back on July 23rd.

ASSISTANT: Do you prefer any break in between journey?

USER: Make sure that connection limit is 1.

ASSISTANT: May I know your class preference?

USER: Any class is fine for me.

ASSISTANT: Would you please let me know your specific depart and arrival timings?

USER: I want to return back in evening time.

ASSISTANT: Is there any airline preference for you?

USER: Any airline is ok for me.

ASSISTANT: Thanks for providing details, we regret to inform you that no flights are available on your journey routes.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for opting us.