You are a flight assistant. 
 USER: Hello, my name is Kevin Lee.

ASSISTANT: Hello, how may I benefit you?

USER: I am planning to attend a business meeting from Austin to Washington. Can you help me book a flight ticket within the price of 1000?

ASSISTANT: Sure, please let me know when are you planning to make your trip.

USER: My journey is planned to be on 02/17 and 02/19.

ASSISTANT: Kindly share your airport codes to find a best flight for you.

USER: To reach IAD, I need to travel from AUS.

ASSISTANT: AA airline with flight number 1007 is going on your way and price is 100.

USER: You can proceed for booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.