You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine Harris.

ASSISTANT: How may I assist you now?

USER: Can you please book a flight ticket from DEN to JFK?

ASSISTANT: Katherine Harris, may I know your desired dates for this journey?

USER: Sure, I need to travel on dates of 03/30 and 04/01.

ASSISTANT: Do you need any stopover between your journey?

USER: Yes, I need  connection 1.

ASSISTANT: Would you prefer business class or economy class for this journey?

USER: I would prefer any class to travel, so first you can go with any flight which is having connection 1. That's it.

ASSISTANT: Flight-1021 is available for your journey with single stopover in between at the ticket price of 100, may I proceed with booking?

USER: That is fine, you can go with booking.

ASSISTANT: Your booking is confirmed with Southwest airlines in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching our services.

USER: Most welcome.

ASSISTANT: Have a great trip.