You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I'm Patricia Lee, planning to meet my friends in CLT , could you please help me in booking a flight ticket?

ASSISTANT: Sure, I can help you with that. Can you please help me with your travelling dates?

USER: My travelling dates are from 02/17 to 02/19.

ASSISTANT: Ok, could you please provide the source airport code?

USER: My origin code is MCO.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: Patricia, I am sorry to inform you that there is no flight available at your requested dates.

USER: Ok, thank you for your information.

ASSISTANT: You are welcome. Thank you for contacting us.