You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi. How can I help you?

USER: I would like to visit Las Vegas to meet my family members. Could you please help me in booking a flight ticket?

ASSISTANT: Sure. Could you please provide me your details?

USER: My origin airport code is AUS and my destination airport code is LAS. My preferable dates for travelling are 08/10 and 08/12.

ASSISTANT: May I know your name please?

USER: My name is Kevin Parker.

ASSISTANT: I have found a Spirit airlines for you with 1018 flight number, is this flight is ok for you.

USER: Ok, please book the ticket.

ASSISTANT: Your flight is confirmed. Thank you, have a nice & safe journey.

USER: Ok, thank you for your information.