You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in booking a flight ticket from PHL to DTW?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Sure, my travel dates are from Dec 20 to Dec 22.

ASSISTANT: Do you have any specifications about flight connections?

USER: I prefer to travel in a business class.

ASSISTANT: Do you have any preferences about airline?

USER: No.

ASSISTANT: Please mention your name.

USER: I am looking for a connecting flight. Myself Stephanie Lewis.

ASSISTANT: The Frontier airlines providing business class flight with price 600 and the connections 0. Shall I confirm your ticket?

USER: Ok, please confirm that flight.

ASSISTANT: Your ticket is booked. The flight number is 1019.

USER: Thank you for booking.

ASSISTANT: Welcome, have a great day.