You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,In what way shall I assist you for the day?

USER: I am George Mitchell, I want to book a flight from TX-AUS to meet my brother. Can you book a flight under fare of 500?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I will fly on 01/07 and return on 01/09.

ASSISTANT: What is your destination airport code?

USER: My destination is DC-IAD.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a direct flight in between your journey.

USER: Please proceed with booking.

ASSISTANT: Ok. Your booking has been confirmed with AA airlrine.

USER: Thank you for booking my flight ticket.

ASSISTANT: Thank you for reaching us.