The internship aims to develop a controller for a social mobile robot to have a conversation with people using large language models (LLMs) such as ChatGPT. The internship is part of the European SPRING project, which aims to develop mobile robots for healthcare environments. The intern will develop a controller (Python, ROS) for ARI, the social robot. The controller will navigate towards a human (or group), have a conversation with them, and leave the conversation. The intern will use existing components from the SPRING project such as mapping and localization of the robot and humans, human-aware navigation, speech recognition, and a simple dialogue system based on ChatGPT. The intern will also investigate how to optimally use LLMs such as ChatGPT for natural and comfortable conversation with the robot, for example, by using prompt engineering. The intern will have the chance to develop and implement their own ideas to improve the conversation with the robot, for example, by investigating gaze, gestures, or emotions.