original_query: What is business class and where is it available?
query: What is business class and where is it available?
answer: Business class is a travel class available on many commercial airlines and rail lines, offering enhanced seating, food, drinks, ground service, and amenities compared to economy class.  Its availability varies; many airlines offer it, especially on long-haul flights, while some short-haul routes or discount carriers may not. It's also available on select high-speed rail services.