You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: My name is George Hill, I want to book a flight ticket from HOU to SEA, can you help me?

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

USER: My trip dates are Aug 09 and Aug 11.

ASSISTANT: Ok, do you have any other specifications?

USER: My return time is afternoon.

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

USER: Sure, I need a connecting flight.

ASSISTANT: Sorry George Hill, there are no flights available on your requested dates.

USER: Ok, no problem. Thank you.

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