You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I planned to meet my friend in DCA, can you please help me to book a flight ticket from MCO?

ASSISTANT: Please share your trip dates.

USER: I prefer to travel on Mar 7 and Mar 9.

ASSISTANT: Do you need any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Can you share me your preferable timings?

USER: I am comfortable with any time.

ASSISTANT: Do you have any other specifications?

USER: I would like to travel in business class.

ASSISTANT: May I know your name for reservation?

USER: I am Samuel Nelson.

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

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.