United Airlines Holdings Inc UAL.O fell 4.6% on a downbeat first-quarter forecast. By Shubham Batra and Amruta Khandekar March 14 (Reuters) - Battered U.S. bank shares rebounded on Tuesday, driving Wall Street's main indexes higher, while a slight slowdown in consumer price growthprompted investors to price in a smaller rate hike by the Federal Reserve in March. Consumer Price Index (CPI) rose 0.4% in February from 0.5% in January as Americans faced persistently higher costs for rents and food.