You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from AUS to PHL, can you help me in booking the flight ticket?

ASSISTANT: Sure, my I know your travelling dates?

USER: My preferable dates are from 04/21 till 04/23.

ASSISTANT: May I know your name please?

USER: Book the ticket on Benjamin Turner.

ASSISTANT: The Spirit airline is available. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your flight ticket is booked, flight number is 1007.

USER: Thank you.

ASSISTANT: Thank you.