You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you aid me to book a flight ticket from HOU to MCO?

ASSISTANT: Please provide your trip dates.

USER: My trip dates are Apr 12 and Apr 14. respectively.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: My return time should be in the morning.

ASSISTANT: May I know your name?

USER: Benjamin Lopez here.

ASSISTANT: There are no flights available on your routes.

USER: Thank you.

ASSISTANT: Thank you for opting us.