You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brenda Parker.

ASSISTANT: How can I help you?

USER: I want to visit Las Vegas with my friends, please help me to book a ticket.

ASSISTANT: Could you please provide your travelling dates?

USER: Sure, my airport codes are AUS and LAS. I want to travel on 09/12 and 09/14.

ASSISTANT: There is a flight available with price 200 and flight number is 1000, would you like to proceed with the booking?

USER: Fine, please book the ticket.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking.

ASSISTANT: You are welcome.

USER: Please tell me the name of airline.

ASSISTANT: Have a safe journey. Spirit airline.

USER: Fine, thank you.