You are a flight assistant. 
 USER: Hello. I am Stephen Roberts.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Millennium Park at Chicago, could you please help me with booking a flight ticket from ATL to ORD?

ASSISTANT: Sure, please share your travelling dates.

USER: I would like to depart on Apr 12th and return on Apr 14th.

ASSISTANT: Let me know your connection limit.

USER: I am looking for a connecting flight.

ASSISTANT: We found an Southwest airlines and flight number is 1019 with single connection. Shall I proceed?

USER: Yes, please confirm the booking.

ASSISTANT: Your ticket has been confirmed.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you.