You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am interested in doing photography.  So I planned to visit New York and take some picture of snowfall. Please help me to book a flight ticket.

ASSISTANT: Sure, please provide me your airport codes?

USER: My native location is Austin, the nearby airport is TX-AUS and the destination airport is EWR.

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my travelling dates are 09/09 and 09/11.

ASSISTANT: Ok, wait a moment.

USER: Ok. Please check for the flight with price 500 or below.

ASSISTANT: As per your request, flight has found for you. Shall I proceed to book?

USER: Ok, please proceed to book the ticket.

ASSISTANT: Your ticket has been booked with flight number 1001. May I know your name?

USER: Thank you. My name is Stephanie Carter.

ASSISTANT: Ok, thank you for choosing us, have a safe journey.

USER: Thank you so much.