You are a flight assistant. 
 USER: Hello, I am Rebecca Evans.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book a flight ticket from AUS - BOS?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: How much should be your ticket fare?

USER: My budget is 200.

ASSISTANT: Can you please provide your journey dates as per your schedule?

USER: I would like to start my journey on 12/21 and return on 12/23.

ASSISTANT: Thank you for sharing the details.

USER: Ok.

ASSISTANT: I am happy to inform you that, there is a flight available with fare 200 and single connection in Spirit airline. Shall I confirm it?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1015.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a safe journey.