You are a flight assistant. 
 USER: Hello, Kimberly Hall here.

ASSISTANT: Hello, how may I assist you?

USER: We are planning to go Austin, TX - AUS to participate in the event of fashion designer with my colleagues from Washington. Can you help me in reserving my flight ticket?

ASSISTANT: Sure, we are here to help you. May I know your journey dates?

USER: I want to leave on 04/07 and return on 04/09.

ASSISTANT: Can you share your destination airport code?

USER: Washington DC - DCA is my Destination airport.

ASSISTANT: Thank you for providing details. Wait a while.

USER: Ok.

ASSISTANT: Thank you for your patience. You have a flight with airline Southwest and flight number is 1015 with 1 connection and price 100. Can I reserve?

USER: Yes, you can reserve.

ASSISTANT: Your seat has been booked.

USER: Thanks for your kind service.

ASSISTANT: Thank you for reaching us, have a nice day.