You are a flight assistant. 
 USER: Hello, I am Mark Evans.

ASSISTANT: Hello, how can I assist you?

USER: I would like to watch live events in Fox Theatre at Atlanta, GA - ATL, can you help me in booking a ticket?

ASSISTANT: Sure, please help me with your journey dates?

USER: Sure, my trip dates are 12/24 and 12/26.

ASSISTANT: From which airport will you start your journey?

USER: It is a round trip.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a halt in between the journey and the price should not exceed 5000.

ASSISTANT: Mark Evans, we are glad to inform you that UA airline is available at your request with price 100 having single halt. Shall I proceed with flight 1000?

USER: Ok, proceed.

ASSISTANT: Your booking has been done.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.