You are a flight assistant. 
 USER: Hello, I am Kathleen King.

ASSISTANT: Hello, how can I amend you?

USER: I would like to book a flight ticket to attend international conference about religious festivals at Philadelphia, PA-PHL, can you help me to book a flight ticket from Chicago, IL-ORD?

ASSISTANT: Sure, Can you please let me know your travelling dates?

USER: I need to start on 10/19 and I intend to return on 10/21.

ASSISTANT: Do you require any stopovers in your journey?

USER: I prefer one connection.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we are pleased to inform you that, we have found Delta airline, flight number 1021, 1 stopover and the ticket fare is 100.

USER: That's perfect, please proceed with the booking.

ASSISTANT: Your booking has been made.

USER: Thanks for your assistance.

ASSISTANT: Thank you for availing us.