You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to visit the World of Coca-cola which is located in Atlanta, ATL. Can you avail me to book a flight ticket?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travel dates are May 20 and 22.

ASSISTANT: Could you please help me with the source airport code?

USER: My source is from New York, JFK.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I want to return in the afternoon time.

ASSISTANT: May I know your name to proceed further?

USER: Timothy Walker.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: Ok, thank you.

ASSISTANT: Thank you for contacting us.