You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you?

USER: I want to book a flight ticket.

ASSISTANT: Could you please let me know your journey details?

USER: Sure,My travelling details are from phoenix, AZ-PHX to Austin, TX-AUS.

ASSISTANT: OK, Can you please provide me the travelling dates?

USER: Sure, My travelling dates are from May/21 to May/23.

ASSISTANT: Please wait for a while.

USER: OK.

ASSISTANT: Thanks for waiting. There is a flight available that matches your requirements.

USER: Yes, you can proceed.

ASSISTANT: flight number: 1012, airline: Spirit with one connection and the price limit is 100. May I know your name please?

USER: Sure, My name is Katherine Taylor. You can book a ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for contacting us.