Search for my great grandfather

Hi I`m searching for information about my great grandfather, and his trip to America. He was borned in 1882, and his name was andreas iversen romarheim. According to this link: https://digitalarkivet.arkivverket.no he left Bergen 29.03.1909 with a cunard line ticket, and his final destination was Beresford South Dakota. Is there anybody who can help me with with ship he was traveling with, Date of departure/arival and port of arrival in America. I would also know how many years he was in the states before he returned to Norway if posible. Thanks :-)