You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to travel from PHL to DTW. Can you help me to book a flight ticket?

ASSISTANT: Sure, can you please mention your departure and arrival dates of your journey?

USER: I want to fly in the flight on June 01 and June 03.

ASSISTANT: Do you need any layover in between  journey?

USER: No, but I prefer to travel in business class.

ASSISTANT: If you have any other preference regarding your journey?

USER: No.

ASSISTANT: May I know your name please?

USER: Edward Lewis.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT:  There is a flight in American airlines with the ticket price of 600 having one connection and business class. Can I proceed to booking?

USER: Proceed to booking.

ASSISTANT: Your booking is confirmed and the flight number is 1025.

USER: Thank you for your help.

ASSISTANT: Thank you very much for approaching our agency.