This purpose of this paper is to detect the stimulus of AI service quality, evaluated by the SERVQUAL paradigm (emphasizing availability, fulfillment, and efficiency), on customer loyalty in chatbot encounters. This study, grounded on the Technology Acceptance Model (TAM), examines customer pleasure as a mediating factor and trust as a moderating factor in this relationship. The survey data gathered from 255 respondents was analyzed with AMOS. The results demonstrate a substantial and affirmative correlation between the quality of AI services and client loyalty, trust, and satisfaction. Although availability and fulfillment enhance customer loyalty, efficiency does not. Likewise, efficiency and availability enhance trust, whereas fulfillment does not. All three dimensions have a beneficial impact on client satisfaction. The study verifies that customer pleasure mediates the favorable correlation between AI service quality and customer loyalty. This relationship is not influenced by trust. Client pleasure strongly influences client loyalty. However, trust has a minimal effect on loyalty. This study suggests valuable insights into the factors that foster client loyalty in AI-driven service interactions, particularly in chatbot services.