You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Deborah Jones.

ASSISTANT: How can I assist you?

USER: I would like to visit an international conference about Renaissance fair, going to be held at Washington, DCA. So can you please help me in booking a flight ticket from MCO?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are from Nov 10 to Nov 12.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

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

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.