(Undated)--The U.S. Coast Guard is searching for a pair of people who set off on a sailing boat journey from Jamestown.The Coast Guard says Ryan Hollis, Joshua Kane Cairone and a dog have not been seen since Wednesday, when the 43-foot boat left for Norfolk, Virginia with a final intended destination of Miami.The Guard said on Sunday that urgent marine bulletins were being broadcast along the eastern seaboard, and that air crews were involved in the search.