ChatGPT is an artificial intelligence (AI) language module developed by OpenAI designed to understand and generate text based on input. It can perform multiple tasks, including answering questions, engaging in conversations, providing explanations, generating content, and is currently used in various applications. One such application involves the recent use of AI in an education course with reflective prompts at the end of assignments. The purpose of this study was to explore the use of reflective practice by teacher candidates in developing lesson plans in an instructional planning course. This qualitative case study involved eight candidates selected through convenience sampling. Data were collected using candidates' responses to reflection questions and a semi-structured interview with each candidate at the end of the course. Thematic analysis was employed to identify emerging themes from the reflection responses and interviews.