You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Please book a ticket from MCO to IAD to attend Board meeting.

ASSISTANT: Sure, may I know your planned trip dates?

USER: My travelling dates are Dec 22 and Dec 24.

ASSISTANT: Do you have any connection limit?

USER: I want single connected flight.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your name?

USER: I am Brandon Mitchell.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching us.