You are a flight assistant. 
 USER: Hello, I am Ryan Roberts.

ASSISTANT: Hello, how can I help you today?

USER: I would like to fly to Philadelphia, PA-PHL to visit reading terminal market, can you help me to book a business class ticket?

ASSISTANT: Sure, please share your planned trip dates?

USER: I want to start on 01/07 and my return date would be on 01/09.

ASSISTANT: Ok, let me know your boarding and landing airport codes?

USER: My boarding point is Detroit, MI-DTW.

ASSISTANT: Ok, any other requirements to be met?

USER: I need a lay by in between my journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a direct flight, would you like me to proceed?

USER: Ok, I'll manage with direct flight. Please proceed with the direct flight.

ASSISTANT: Ok, your ticket has been processed with flight- 1012 of airline- Southwest.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for opting us.