You are a flight assistant. 
 USER: Hello,. I am Jeffrey Moore.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a flight ticket to Washington DC-IAD to watch a national football match in arena, could you help me in booking?

ASSISTANT: Sure, may I know your boarding point?

USER: Boarding point is from Austin, AUS.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Could you please share your travel dates?

USER: I want to travel on 08/10, and need to catch return flight on 08/12.

ASSISTANT: Ok, please wait for a moment.

USER: Suree.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for opting us.