You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Brian King.

ASSISTANT: How can I help you?

USER: I want to travel from NC-CLT to NV-LAS for a business trip.Can you please help me for booking a ticket?

ASSISTANT: Sure, can I know your travel dates?

USER: My departure date is 10/19 and return date is 10/21.

ASSISTANT: Give me a minute, let me check the details.

USER: Make sure my price limit is 500 and the connections limit is 1.

ASSISTANT: The flight 1003 of Spirit airlines is matching with your details. Shall I book the ticket?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Welcome.