By Rafiq Vayani DUBAI: Oman Air, the award-winning national airline for the Sultanate of Oman, unveiled the new First Class Mini Suite of its Dreamliner 787 -9 fleet, on the opening day of Arabian Travel Market, a key travel and tourism event taking place from 22-25 April, held at the Dubai International Convention and Exhibition Centre. HE Maitha Al Mahrouqi, …