You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I am Ronald Anderson. I want to book a flight ticket from CLT to LAS. Can you make a reservation for me?

ASSISTANT: Sure, we will help you.

USER: Thank you.

ASSISTANT: Can you please help me with providing your journey dates?

USER: Sure, my planned trip dates are on 09/25 and return on 09/27.

ASSISTANT: How much you can spend for airfare?

USER: I will spent only 500.

ASSISTANT: Sorry we did not find any flights matching your details.

USER: Ok, not an problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.