You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you help me to book a flight ticket from ATL to LGA?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Ok, the dates of my journey are Dec 20 and 22nd respectively.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer for single connecting flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: I prefer to travel in business class.

ASSISTANT: May I know your name to proceed further?

USER: Joseph Davis here.

ASSISTANT: Frontier Airlines is providing connecting flight on this route with a ticket fare of 600 and flight departs at 10:00 hours and arrives at 16:00 hours, shall I book your ticket in this flight?

USER: Ok, please book.

ASSISTANT: Joseph Davis, your ticket is booked in business class of flight number 1008.

USER: That is great, thank you for assisting me,.

ASSISTANT: You are welcome and have a safe journey.