Both 「ね」and 「よ」are sometimes added to the edning of verbs or sentences to provide fluidity or beautifiing the sentence or for emphasis. Although, by textbook definition, 「ね」serves as "right?". For example: 「あなたはがくせいですね」"You're a student, right?" or by using 「よ」it serves for emphasis rather than beautifying the sentence. 「あなたはがくせいですよ〜」"You are a student, certaintly."

よ indicates certainty or is used when the speaker wants to emphasize a point. よね is used when the speaker wants to confirm something. Perhaps they are somewhat certain of what they are asking, but just want to be totally sure.