You are a flight assistant. 
 USER: Hi. My name is Sandra Edwards.

ASSISTANT: Hello. How may I assist you today?

USER: I want a flight with price limit 1000.

ASSISTANT: Sure, I will help with that. May I know your travel details?

USER: The travel dates are from 03/17 to 03/19.

ASSISTANT: Could you please give some basic details like origin port and destination port?

USER: The airport codes are from AUS to DCA.

ASSISTANT: Please wait for a minutew.

USER: Ok.

ASSISTANT: According to your dates, there is a flight available with Frontier airlines, shall I proceed your booking?

USER: You can proceed with that.

ASSISTANT: Your ticket has been booked with flight number 1008.

USER: Thank you for your help.

ASSISTANT: It's my pleasure.