You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Mary Brown here.

ASSISTANT: How can I assist you today?

USER: I am planning to visit Atlanta for my business trip. So can you book a single connecting flight ticket for me?

ASSISTANT: Ok, please can I know your airport codes?

USER: The airport codes are from LGA to ATL.

ASSISTANT: Ok, please can I know your dates of your journey?

USER: My travel dates for the trip are from Dec 22 to Dec 24.

ASSISTANT: Ok, please can I know other specifications?

USER: No more preferences.

ASSISTANT: Ok, thank you for waiting. Ok, there is a direct flight for the airfare 100 and the class is economy. The flight number is 1015. Can I book?

USER: I am fine with the airlines and fare. You can book the flight ticket.

ASSISTANT: Ok, the flight ticket is booked and the airlines is Spirit.

USER: Thank you.

ASSISTANT: Thank you for choosing our agency.