You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I have a business conference meeting at Orlando this month. Can you please help me in reserving the ticket from DCA to MCO?

ASSISTANT: Sure, may I know your travel dates?

USER: I would like to travel on Aug 2 and again I will return back on Aug 4.

ASSISTANT: Do you have any specifications?

USER: I want to travel in direct flight.

ASSISTANT: May I know your name?

USER: Myself Christopher Walker.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Not a big deal, anyhow thank you very much for your information.

ASSISTANT: Thank you.