[gesman]

I wonder the magic CostcoTravel does.

10 days trip to Italy, 4 stars hotel in Florence, business class flight in Air France including business class transfers both way $7700 - for 2 people - ALL above included.

Try to book this thing via Google or any other means

[metanoia]

That's good old negotiation and group purchasing there. No fancy tech required, just a relatively performant CRUD app and integration into travel GDS (reservation) systems.