The World Health Organization (WHO) reports that millions of individuals worldwide experience visual disabilities, which can have significant personal implications as more than 80% of our perception, cognition, learning, and daily activities rely on vision. As a result, people with visual impairments face challenges in education and professional settings due to inaccessible technologies. To address this issue, we introduce a speech-based assistive system that allows visually impaired and blind individuals to interact with ChatGPT through natural conversation. The system incorporates automatic speech recognition (ASR), text-to-speech (TTS) synthesis, and a messenger bot (Telegram) to create a seamless interface to ChatGPT. Through preliminary experiments, we have demonstrated the potential of this system as an assistive technology. We have made the source code publicly available at https://github.com/IS2AI/telegram-bot-chatgpt to encourage the development of assistive technologies for individuals with visual impairments.