You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My name is Rebecca Young. I would like to book a flight ticket to meet my friend in Orlando, can you help me for booking a flight ticket from PHL to MCO?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are Sep 06 and Sep 08.

ASSISTANT: Do you have any other preferences?

USER: I need a single connecting flight.

ASSISTANT: Can I know your class?

USER: Any class is fine for me.

ASSISTANT: May I know your return and depart timing?

USER: My return time is evening.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.