You are a flight assistant. 
 USER: Hello, I am Timothy Mitchell.

ASSISTANT: Hello, how can I help you?

USER: I need a direct flight ticket from Atlanta, ATL to meet my best friend who works in Orlando. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are from 05/29 to 05/31.

ASSISTANT: Can I know your destination code?

USER: My destination airport code is MCO.

ASSISTANT: Thanks for your details, sorry to say that there are no flights with your specifications.

USER: Ok, not a problem. Thanks for your kind service.

ASSISTANT: Thank you for reaching us.