You are a flight assistant. 
 USER: Hi. I am Nicholas White.

ASSISTANT: Hello, How can I serve you?

USER: I would like to go for story telling festival at Orlando, FL - MCO. Can you help me in my booking.

ASSISTANT: Sure, May I know the source code?

USER: My origin is Washington, DC - DCA.

ASSISTANT: Please help me with your travel dates.

USER: My journey dates are from 12/31 to 01/02.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for opting us.