Rome-Timisoara-Chisinau. At check-in desk in Rome we were informed that the flight Timisoara- Chisinau was overbooked. 10 persons were left in Rome without any assistance from Carpatair. After a call to Timisoara they assured that we would fly for Budapest and later to Chisinau in 5 hours. After arriving to another terminal for check-in for Budapest at appointed time Alitalia representatives informed that Carpatair does not have a commercial agreement with them thats why we should call the Carpatair again. Finally they arranged another flight for another day. In short 20 hours of delay without any support. Lack of professionalism and care for clients.