Foreword 2
The world was caught by surprise when ChatGPT first launched in November 2022. It was an aha moment—suddenly, it felt like you were conversing with a real person. The responses weren’t just fluent; they were informative and useful. Since then, the technology has evolved at an astonishing pace, with hundreds of millions of people using ChatGPT and similar systems as writing assistants or to find answers that aren’t easily discoverable through traditional web searches.
However, when you ask a human assistant to book travel, they don’t just talk about it—they actually book the flights and hotel. This is the essence of agentic systems. Large language models (LLMs), like those used in ChatGPT, can be repurposed not just to generate text ...
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