You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to attend my friend marriage at NC-CLT. Can you help me in booking a direct flight?

ASSISTANT: Sure, could you please provide me your planned journey dates?

USER: My preferable travel dates are 07/13 to 07/15.

ASSISTANT: May I know your source airport?

USER: My origin airport code is NC-CLT.

ASSISTANT: Please provide me your name.

USER: Shirley Lopez here.

ASSISTANT: Sorry, no flights found with your given details.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.