Although research has made significant gains in understanding the constitutive nature of conversation in the process of organizing, its predictive effects on organizational outcomes are still uncertain. To contribute in this direction, based on social exchange theory and leader-member exchange (LMX) research, this study examined the predictive effects of leader-member conversational quality (LMCQ) on employee organizational commitment (OC), and the potential interaction effects of LMCQ with LMX quality. Using data from an online survey, this study found that above and beyond communication frequency and other control variables, LMCQ is significantly associated with employee OC. More interestingly, the effects of LMCQ vary based on the level of LMX quality. These findings have significant implications at both theoretical and practical levels.