Carnival Corporation's luxury cruise brand Seabourn introduced its newest vessel with a naming ceremony for Seabourn Ovation in the harbor of Valletta, Malta.Seabourn Ovation is the fifth ultra-luxury vessel to join the Seabourn fleet over the past decade, and the second of two ships designed for the line by hospitality design icon Adam D. Tihany.Seabourn Ovation was delivered on April 27 during an official handover ceremony at the Fincantieri shipyard in Genoa, Italy. Following the delivery ceremony, Seabourn Ovation began her maiden season with an 11-day inaugural voyage departing May 5 from Venice, Italy, and culminating with its arrival in Barcelona…