in recent year, semantic understanding is very important input method in Human-Computer Interaction (HCI), especially for some minority group who can only communicate with others by voice interaction. Nowadays, semantic understanding has been widely used in many fields. With the development of deep learning, artificial intelligence, and other computer technologies, semantic understanding has achieved breakthrough research progress, recently, a new viral bot, ‘ChatGPT’, was released by the artificial intelligence company ‘Open AI’ in November 2022. However, The ChatGPT cannot provide precise information in professional field. In this paper, we will introduce a semantic model tool which will apply in civil aviation field, provide accurate information during the airport traveling process.