You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket from MCO to DCA. Could you help me in booking?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: My travelling dates are from Nov 22 - 24.

ASSISTANT: Do you have any preferences?

USER: I prefer for connecting flight.

ASSISTANT: Do you have any other specifications?

USER: My return time should be in the morning.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: That's ok, no problem.

ASSISTANT: Can I know your name?

USER: Thank you. Lisa Gonzalez.

ASSISTANT: Thank you for contacting us.