You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Paul Phillips. I want to book a ticket from SEA to MCO.

ASSISTANT: May I know your trip dates?

USER: My preferable dates are from 08/26 to 08/28.

ASSISTANT: Sorry, there is no flight available as per your request.

USER: That,s ok, no problem.

ASSISTANT: Most welcome.

USER: Thank you for helping me.