You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Please book my flight ticket from AUS to LAS?

ASSISTANT: Sure, I am happy to help you with that. Can I know your planned trip dates?

USER: My trip dates are Nov 15 ad Nov 17.

ASSISTANT: Ok, do you have any other requirements?

USER: I need my depart ticket at evening time.

ASSISTANT: May I know your name?

USER: Myself Justin Thompson.

ASSISTANT: Ok, wait for a minute.

USER: I prefer single connection flight.

ASSISTANT: I have found a connecting flight having a ticket fare of 300 which is provided by Spirit airlines in an economy class. Shall I proceed with the booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is confirmed with the flight number 1025.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a safe journey.