My research interest lies in the realm of social interactive agents, specifically in the development of social agents for positively influencing human psychological states. This interdisciplinary field merges elements of artificial intelligence, psychology, and human-computer interaction. My work integrates psychological theories with dialogue system technologies, including rule-based systems and large language models (LLMs). The core aim of my work is to leverage these systems to promote mental well-being and enhance user experiences in various contexts. At YRRSDS 2024, I plan to discuss several intriguing topics in spoken dialogue systems (SDS), including implementing psychological theories into SDS, assessing human-agent rapport without direct human evaluation, and conducting SDS evaluations using other SDSs. These topics promise to stimulate insightful and engaging discussions during the roundtable at YRRSDS.