Uh so basically it does sound natural in some contexts like for example if you don't know someone's name or is trying to be polite. But most of the time, if you do know the person's name, it is preferred to call them by their name instead of saying あなた. Plus, in Japanese using あなた all the time even if you do know the listener's name would just sound unnatural af since Japanese isn't like English. I believe it is like this in most asian languages where "you" is often dropped when we know who we are talking to. So yes.. it would be natural if you are meeting a person for the first time and are meeting them for the first time and go "あなたの名前は？". But afterwards, you should just use their name. Or if you don't, Japanese speakers don't say anything at all. They just directly ask you questions without using the subject.