Sabre Travel Network and Marriott International have enhanced an existing agreement to simplify the search process for group accommodations. Marriott is now using Sabre's maximum occupancy product, claiming that the tool makes it easier to find single-room lodging for parties of up to nine people. In addition, the hotelier also enrolled over 1,400 properties in Hotel UpSell, which Sabre said on average provides a 12 percent increase in booking revenue for each transaction made in Sabre's global agency network. The agreement also maintains that travel agents will continue to have rate parity for published rates, as well as negotiated rates through Sabre. (JM)