You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Kenneth Lee here.

ASSISTANT: Ok.

USER: I would like to celebrate my birthday at Chicago, please help me in booking a ticket from ATL to ORD.

ASSISTANT: Sure, I would be happy to help you. Do you prefer a stopover in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My planned journey dates are on Apr 16 and Apr 18.

ASSISTANT: Is there any other preferences?

USER: No more preferences, please find the availability of flights.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure, take your time.

ASSISTANT: We found a direct flight from JetBlue airline with a fare of 200 and flight number 1004. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been reserved in economy class.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for availing us.