You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit Orlando, can you please book me a ticket from DCA to MCO?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My preferable journey dates are Nov 07 and Nov 09.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: Any flight is ok for me.

ASSISTANT: Do you have any other specifications?

USER: I prefer to depart in afternoon flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your good name please?

USER: My name is Alexander Carter.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for approaching us.