system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is the largest airline in the world ?


assistant
The largest airlines in the world can be defined in several ways. As of 2022, Delta Air Lines is the largest by revenue, assets value and market capitalization, China Southern Air Holding by passengers carried, American Airlines Group by revenue passenger mile, fleet size, numbers of employees and destinations served, FedEx Express by freight tonne-kilometers, Ryanair by number of routes, Turkish Airlines by number of countries served.