You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Carol Garcia. I am planning to book a ticket from DEN to JFK. Can you please help me out?

ASSISTANT: Sure, let me know your travelling dates.

USER: I would like to travel on Aug 17 and return back on Aug 19.

ASSISTANT: Please share your connection limit.

USER: I am looking for a connecting flight.

ASSISTANT: Is there any class preference?

USER: No, my return back on morning.

ASSISTANT: We found an Delta airlines with single connection and your return time will be morning. Shall I proceed for booking?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket has been confirmed with 1020 flight number.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.