You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am John Jackson. I need direct flight to Atlanta to visit World of Coca Cola with my childhood friend. Could you please book a flight ticket?

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

USER: My travelling dates are 06/24 and 06/26.

ASSISTANT: Kindly mention your exact airport codes to further process.

USER: My starting point is CA-LAX and ending point is GA-ATL.

ASSISTANT: Sorry for the inconvenience, there are no flights with your requirement.

USER: Ok, no issues. Thank you for your kind service.

ASSISTANT: Have a good day.