You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me in booking my flight ticket from ATL to MCO?

ASSISTANT: Can you please share your preferable journey dates?

USER: My planned travel dates are Dec 20 to 22.

ASSISTANT: May I know your name please?

USER: Myself, Charles Rodriguez.

ASSISTANT: Do you have any other specifications?

USER: I prefer a connected flight. And I want to return in the afternoon.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.