Referring to Expedia's recent acquisition of online travel agency (OTA) rivals Travelocity and Orbitz, Steve Hafner, chief executive of Kayak said: "I don't think consolidation is a bad thing. How many people enjoy the travel experience of going to multiple sites and using multiple apps? "Are suppliers concerned about Expedia consolidating? Some are. But consolidation is natural."Hafner also declared: "I hate the word 'personalisation'. It's too amorphous. Any service that requires registration to use, you are going to lose people. Get the full story at Travolution