You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I have to meet my clients in Chicago, can you please find a flight in the route from Philadelphia?

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: Thanks a lot for your quick response. My name is John Davis.

ASSISTANT: Please help me with your planned travelling dates.

USER: I want to departure on the date of July 21 and return back on the date of July 23.

ASSISTANT: May I know if you have any other preferences in your journey, please?

USER: Yes, I am looking for a single connecting flight for this trip.

ASSISTANT: Do you have any other preferences in your journey?

USER: No, thanks a lot for specifying.

ASSISTANT: Please help me with your preferred class to fly.

USER: I can travel in any type of class.

ASSISTANT: We have a connecting flight operated by American Airlines with a fare of 400 only. Shall I book the flight ticket?

USER: I think this flight is perfect for me to travel, so please do proceed to reserve the ticket.

ASSISTANT: I have booked your ticket in the flight-1018.

USER: Thanks a lot for assisting me in reserving the plane ticket.

ASSISTANT: You are welcome. Thank you for reaching us. Have a great time!.

USER: You are most welcome.