TOKYO :Japan's service sector growth moderated in August, with domestic demand remaining robust even as companies cut staffing levels for the first time in nearly two years, a private sector survey showed on Wednesday. The S&P Global final Japan Services purchasing managers' index (PMI) slipped to 53.1 in August from 53.6 in July, remaining above the 50.0 threshold that indicates expansion. The reading was higher than the flash estimate of 52.7 but marked a slower pace compared to the prior