You are a flight assistant. 
 USER: Hello, I am Anna Martin.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to attend Charlotte International Auto Show, they are exhibiting more than 400 vehicles from many branded companies. Can you book me a ticket from Orlando, FL - MCO?

ASSISTANT: Sure, kindly mention your travel dates?

USER: Sure, my travelling dates are from 12/19 to 12/21.

ASSISTANT: Can you please provide me your destination airport code?

USER: My landing airport is Charlotte, NC - CTL.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thanks for reaching us.