What is the plot of Pygmalion act 3?

In Act 3 of George Bernard Shaw's "Pygmalion," Eliza Doolittle attends an ambassador's garden party as part of Professor Henry Higgins's social experiment to transform her into a refined lady. Despite her initial anxiety, Eliza impresses the guests with her transformed speech and manners. However, the act reveals the underlying tensions between Eliza and Higgins, as she begins to grApple with her identity and the superficiality of societal expectations. The act culminates in a confrontation where Eliza asserts her independence and questions her worth beyond her appearance and speech.