正文: Hang on a minute, it's you, not him.
等一等,是你,不是他。
No, it's right here.
不,就是在这。
经典句扩展: Well, actually, he was not the person you are looking for.
嗯,实际上,他不是你要找的人。
Allow me to correct one thing you said: he is not our enemy.
请允许我纠正您,他不是我们的敌人。
If I may correct you, their first attempt was a complete failure, actually.
请允许我纠正您,事实上他们的第一次尝试就是一个彻底的失败。
I think it might be more correct to say they do not appreciate his paintings.
我想这么说可能更确切:他们不欣赏他的油画。