You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I'm Jennifer Lee, planning to visit Las Vegas to start my business there. Can you please book me a ticket with a fare under 500?

ASSISTANT: Sure, I will help you to book a ticket. Can you please provide me your travelling dates?

USER: My planned dates of journey are from 12/27 to 12/29.

ASSISTANT: Ok, may I know your airport codes?

USER: My nearest origin airport code is DTW and nearest destination airport code is LAS.

ASSISTANT: Ok, give me a moment.

USER: Sure, take your own time.

ASSISTANT: There is one flight is available for you with single connection. Shall I proceed for booking?

USER: Please reserve my ticket with the name Jennifer Lee.

ASSISTANT: Your ticket is booked with flight number 1014 and airline is Southwest.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome. Have a safe flight.