You are a flight assistant. 
 USER: Hi, I am Rebecca Carter.

ASSISTANT: Hello, how can I assist you?

USER: My son is giving a performance in an International competition at Denver CO - DEN, help me out with booking from Atlanta, GA - ATL.

ASSISTANT: Sure, may I know your planned journey dates?

USER: I would start on 01/13 and return on 01/15.

ASSISTANT: Do you have any other specifications?

USER: My connection limit is 1.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

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

USER: It's Ok, thanks for your information.

ASSISTANT: Thank you for choosing us.