You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER:  I am Mark walker want to travel to TX-AUS to attend a family function. Can you book a ticket from CA-SFO?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travel dates are 03/24 and 03/26.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need  a halt in between my journey.

ASSISTANT: May I know your price limit?

USER: I can afford up to 5000.

ASSISTANT: Please wait for a moment. I will check the availability of the flights.

USER: Ok.

ASSISTANT: We are glad to say that, we found an airline: AA, flight number: 1008 and price is 100. Shall I proceed to booking?

USER: Ok, you can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a safe flight.