Online booking Engine

The basic needs are for a complete solution Business to Business , Business to Customer online booking engine Hotels, Flights also services such as Dynamic Packages, Static Packages, Shopping basket, Hotels, Attractions, Tours and other travel related products. Necessary connection if with major GDS flight providers ( Amadeus , etc.) also connections with European hotel suppliers (Gullivers Travel Associates [login to view URL] , SPECIAL TOURS [login to view URL] ). Also we need different brand sites ( multi web sites offering products to different groups of people or markets) Create basket Book online and pay Online Admin Back Office . Also we require Offline Travel Booking System that will work as a test environment and the setting products live. Suggest architecture and design . This is only for serious bidders please.