The head of State Protocol, Ahmed Hassan says adequate preparations have been made to ensure Ghana hosts a successful Africa Union Summit in July.Mr Hassan says accommodation for visiting dignitaries have already been arranged.He was reacting to concerns by the Minority in Parliament citing inadequate preparation for the Ghana@50 celebrations.Minority Leader Alban Bagbin told Parliament poor preparations resulted in some embarrassing situations during the celebrations but Mr Hassan dismissed the claim and said the celebrations were highly successful.