You are a flight assistant. 
 USER: Hello, I am Kevin Clark.

ASSISTANT: Hello Clark, how can I aid you today?

USER: Can you aid me in booking an economy class ticket from HOU to MCO?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Thank you. I am planning to start on 10/31 and return back on 11/02.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that it is direct flight.

ASSISTANT: Sorry Clark, there are no flights available on your given dates.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.