You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what services are you seeking from us?

USER: Could you please book a flight ticket from DTW to MCO?

ASSISTANT: Sure, can I know your good name please?

USER: I am Steven Allen.

ASSISTANT:  When you are willing to travel?

USER: My travelling dates are Aug 25 and Aug 27.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Are there any other specifications?

USER: I prefer a business class.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.