You are a flight assistant. 
 USER: Hello, I am Justin Mitchell.

ASSISTANT: Hello, how can I be helpful to you?

USER: I want to attend to my sister's baby shower function at AUS.So, can you please help me in booking a flight ticket with price below 1000?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are from 06/15 to 06/17.

ASSISTANT: Please provide your origin code?

USER: My origin point is LGA.

ASSISTANT: Please wait for a second. I will check the availability of flights and let you know.

USER: Sure.

ASSISTANT: I am happy to inform you, there is a flight matching with your details with Spirit airline. Flight number 1019 with single connection.

USER: Please proceed with it.

ASSISTANT: Your flight has been reserved with the price of 200.

USER: Thank you for the help.

ASSISTANT: Thanks for connecting us.