B2B online booking engine

I'm looking for B2B Online Reservation system web-based platform that provides a multi-channel reservation and distribution engine consisting in a single user-friendly selling interface that gives access to a wide range of travel products for individual travellers, such as hotels, tours, transfers, flights, car rentals. I need a powerful and ingenious administration engine which can easily sustain multiple operations of all levels of the system, empowering users to manage their inventory through intuitive mid and back office tools, to offer global integration to 3rd party suppliers of travel services and to sell these products via multiple selling channels (B2B, B2C, B2E, White Label and XML Out). Features I need: Create users, manage their roles, rights and passwords Search, book and cancel travel services with immediate confirmation Refine search results based on various criteria per service View interactive Google Maps and distances to points of interest Cancellation policy management including deadline alerts Automated cancellation of non-finalized bookings by deadline White Label for B2B (sub-agents) and B2C (end customers) Agent's own identity on the booking engine (banner, logo on voucher) Multiple payment options per agent (credit, cash, credit card) Booking management via control panel (see booking list, export booking list in Excel, search and find reservation) Remarks / messaging system with travel agents (messaging between root and agent on a reservation) Booking history Credit history