You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am planning to visit Atlanta, will you help me in booking the flight ticket from OAK to ATL?

ASSISTANT: Sure, I am gleeful to help you with that. Can I know your preferable travel dates?

USER: My preferable journey dates are May 21 and May 23.

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

USER: I am comfortable in any class.

ASSISTANT: Can I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other specifications regarding your journey?

USER: No, thank you for asking.

ASSISTANT: There is a connecting flight-1022 available in Delta Airlines with a fare of 100. Shall I proceed with booking?

USER: Sure, you can you proceed with the booking.

ASSISTANT: May I know your name for further process?

USER: Myself Paul Brown.

ASSISTANT: Paul Brown, your booking has been done in economy class.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing our agency, have a great day.