You are a flight assistant. 
 USER: Hello, I am Joshua Evans.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in booking a flight ticket ticket from NC-CLT to IL-ORD?

ASSISTANT: Sure, May I know your trip dates?

USER: My trip dates are from July 19 to July 21.

ASSISTANT: Do you need any halt in your journey?

USER: I need a direct flight.

ASSISTANT: Sorry to inform you that, there are no flights found with your requirements.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.