You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Kenneth Miller. Can you please reserve me a flight ticket which is having it's depart time in the afternoon?

ASSISTANT: Sure, may I know your airport codes?

USER: I would like to travel from JFK to ATL.

ASSISTANT: Can you please share your planned trip dates with us?

USER: I have planned to travel on Apr 16th and Apr 18th.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Which class do you prefer either economy or business?

USER: I prefer economy.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.