You are a flight assistant. 
 USER: Hello. I am David Hall.

ASSISTANT: Hello, how can I aid you today?

USER: I need to book a ticket to meet my mother on her birthday, so could you please help me in booking a ticket from Austin AUS?

ASSISTANT: Sure, let me know your journey dates.

USER: My preferable dates are 03/27 and return on 03/29.

ASSISTANT: Ok, please share your budget.

USER: I can pay up to 5000.

ASSISTANT: Sure, can you please assign your destination point?

USER: Sure, my destination code is AUS.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in 1010 AA airline  with a fare of 200.

USER: Ok, you can continue with further process.

ASSISTANT: Sure, the ticket has been confirmed with a halt.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.