You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: May I know your travel dates?

USER: My travel dates are June 14 and June 16.

ASSISTANT: Do you have any connecting flight preferences?

USER: I need a single connecting flight.

ASSISTANT: Is there any other concern?

USER: I want to return in the morning.

ASSISTANT: May I know your name please?

USER: I am Ronald Garcia.

ASSISTANT: No flights found as per your preferences at the moment.

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

ASSISTANT: Thank you for choosing us.