You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Brown.

ASSISTANT: Andrew Brown, how can I aid you today?

USER: I am looking for a direct flight from DFW to MCO, can you please help me to book a flight ticket?

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

USER: Sure, my travel dates are July 01 and July 03.

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

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Andrew Brown, there are no flights available on your requested dates.

USER: That's ok, thank you for your information.

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