You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Please book a flight ticket from PHL to JFK for my business trip.

ASSISTANT: Sure, I will help you. Please help me with your planned travel dates.

USER: Thank you for taking my request into consideration, my departure is on Apr 14 and please book my return ticket on Apr 16.

ASSISTANT: Please let me know with your name.

USER: Sure, my name is Betty Martin.

ASSISTANT: Do you need a direct or connecting flight?

USER: I need a connecting flight.

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

USER: I don't have any class preference.

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

USER: No.

ASSISTANT: We have a direct flight operated by American Airlines with a fare of 100. Is it ok for you?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Thank you for the confirmation. I have booked your ticket in flight-1015. It departs at 18 PM and arrives at 6 AM.

USER: Thank you for your assistance.