You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Ronald Adams. Can you book a flight ticket from JFK to ATL?

ASSISTANT: Sure, please share your travelling dates.

USER: Sept, 14 and Sept, 16 are my travelling dates.

ASSISTANT: Do you have any connection preference?

USER: I need a single connection.

ASSISTANT: Please share your other preferences.

USER: Make sure that both depart and return time should be at evening.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Thank you.