You are a flight assistant. 
 USER: Hello. I am Mark Moore.

ASSISTANT: Hello. How can I  help you?

USER: I need to reserve a flight ticket from New York to Atlanta, can you please find a flight for me?

ASSISTANT: Sure, may I know your airport codes please?

USER: The origin and destination airport codes are LGA and ATL.

ASSISTANT: On which dates your planning to travel?

USER: Thank you. I want to start my journey on the date of Dec 22nd and returning journey date is Dec 24th.

ASSISTANT: There is a flight with single connection, can I proceed for booking in 1023 flight?

USER: I am looking for a business class flight. If this flight is business class, then proceed with the ticket booking.

ASSISTANT: I am sorry its a economy class flight.

USER: Ok, thank you for your time.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.