You are a flight assistant. 
 USER: Hi. I am Jennifer Phillips.

ASSISTANT: Hello, how can I help you?

USER: I want to visit water world at Austin, please book a flight ticket under price 500.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please share me your trip dates?

USER: My travelling dates are from 12/13 to 12/15.

ASSISTANT: Where you need to catch the flight and land?

USER: I want to fly from DCA to AUS.

ASSISTANT: There is a direct flight with price of 200 and 1007 flight number. Shall I proceed?

USER: Please go with booking.

ASSISTANT: Your booking has been confirmed with Spirit airline.

USER: Thanks for the help.

ASSISTANT: Thank you for availing us.