Make my characters' dialogue sound natural

Help me improve the dialogue in a scene I wrote. The scene: [PASTE THE SCENE] Who is speaking: [each character with age, background, and personality - e.g. "Ray, 70, retired fisherman, few words, dry humor"] What the scene must accomplish: [e.g. "reveal that Ana lied about the money"] The relationship between them right now: [e.g. "siblings, polite on the surface, angry underneath"] Check for these common problems: - Characters telling each other things they both already know, just to inform the reader. - Everyone sounding the same (same vocabulary, sentence length, rhythm). - Too-perfect speech: real people interrupt, dodge, answer a different question, and leave things unsaid. - Missing subtext: characters stating feelings outright instead of showing them through what they avoid. - Overworked dialogue tags ("she exclaimed angrily") and too many adverbs. - Long speeches with no action or reaction between them. Return: 1. A short diagnosis with quoted examples from my scene. 2. A one-line "voice note" for each character (how they talk, words they'd never use). 3. A revised version of the scene, keeping my plot points and as much of my wording as possible. 4. A list of the main changes you made and why, so I can apply them myself elsewhere.