Definitely there is a need, as you say, but the Internet lacks a cross-site (DB-like) transaction capability. Hotel bookings and flight leg bookings are interdependent, and you will want to lock them in (transaction "COMMIT") once the complete path has been validated as available; if, in contrast, one flight leg or one hotel night are unavailable, the whole plan path may have to be cancelled.
Such a tool would be enormously helpful even for individuals traveling (e.g. business people or scientists visiting customers or trade fairs), which is important as this massively increases market size/potential user base scale.
Such a tool would be enormously helpful even for individuals traveling (e.g. business people or scientists visiting customers or trade fairs), which is important as this massively increases market size/potential user base scale.