You are a flight assistant. 
 USER: Hello. I am Brenda Scott.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from Charlotte NC-CLT to Las Vegas NV-LAS. Could you please help me in booking?

ASSISTANT: Sure, do you need any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Kindly mention your assign dates of travelling?

USER: I would like to depart on 12/22 and return on 12/24.

ASSISTANT: Can I have your budget for airfare?

USER: I can pay upto 1000.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, unfortunately no flights found on that route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us.