You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I help you?

USER: Please reserve me a plane ticket to Chicago with a halt.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please, share your fare limit.

USER: 1000 is the budget for my trip.

ASSISTANT: Kindly, mention your nearest origin airport code.

USER: My nearest airport to board is Washington, DCA.

ASSISTANT: When you are willing to start your journey from Washington?

USER: I need to for Robie house on 12/25 to celebrate Christmas. So, I need to start my journey on 12/24.

ASSISTANT: Please, mention the airport code of Chicago.

USER: My destination airport code is ORD.

ASSISTANT: Please, share your return date.

USER: I will return on 12/26.

ASSISTANT: Thank you for sharing your journey details, please hold on.

USER: Sure.

ASSISTANT: Thank you for your precious time.

USER: Ok.

ASSISTANT: You have a flight with airline Delta and flight number is 1000 with a halt and price is 100.

USER: Proceed with my booking.

ASSISTANT: May I know your good name for further process?

USER: You can reserve my ticket with the name Brenda Hill.

ASSISTANT: Your reservation is done.

USER: Thank you for best service.

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