You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can serve you at this moment?

USER: I am Gregory Hall, can you please help me to book a ticket from PHL to MCO?

ASSISTANT: Sure, when you are planning to make your journey?

USER: My travelling dates are on Apr 04 and Apr 06.

ASSISTANT: Is there any class preference in your journey?

USER: I prefer a business class.

ASSISTANT: Please mention your connection limit.

USER: I need a single connection.

ASSISTANT: May I know your name please?

USER: I have mentioned my name already.

ASSISTANT: Ok sorry, please be on hold.

USER: Sure.

ASSISTANT: Sorry, there are no flights are available matching your credentials.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us.