You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me to book a flight ticket from ATL to LAS?

ASSISTANT: Sure, may I know your name?

USER: My name is Jason Phillips.

ASSISTANT: Do you have any other specifications?

USER: I would like to prefer economy class flight ticket.

ASSISTANT: May I know your travelling dates?

USER: My travel dates are Sept 14 and Sept 16.

ASSISTANT: Can I know your other preference?

USER: I prefer connecting flight for this trip.

ASSISTANT: There is a flight on spirit airline, flight number 1009 with the fare of 100.

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.