Complex sentence: From 1966 until 1984 Atlanta Skylarks was restricted to flights for the Skylarks Travel Club but after the name change to Independent Air, the company was granted a license for worldwide charters.
Split into simpler sentences: From 1966 until 1984 Atlanta Skylarks was restricted to flights for the Skylarks Travel Club. After the name change to Independent Air, the company was granted a license for worldwide charters.