Most booking engines has call center interface for agents, but most booking engines still lacking it to call it as true centralized call center travel interface with full-blown CRM. Most travel call center still uses disparate booking tools, thus expensive and time consuming to use it through series of manual intervention. Roundtrip Systems has introduced early this year an automated travel call center called TravelDesk. TravelDesk allows corporate user and consumer with sophisticated notification features for self-service travel bookings. TravelDesk also reduces phone call interaction between corporate travel personal assistant or call center agent.