You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to attend a workshop at Washington, can you please help me in booking a flight ticket from AUS to DCA?

ASSISTANT: Sure, please share your planned trip dates?

USER: Sure, my travel dates are from Aug 16 to Aug 18.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Let me know your airline preference?

USER: I would prefer normal-cost airlines.

ASSISTANT: Ok, any other requirements to be met?

USER: No.

ASSISTANT: May I know your name please?

USER: Rebecca Smith here.

ASSISTANT: Ok, we found connecting flight 1027 in Delta Airlines with fare of 200. Shall I proceed with economy class?

USER: Ok, please proceed.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.