The literal translation of this sentence is あなたのおなまえはなんですか but I wouldn't ask for the name with this way. I would say: おなまえをおしえてください。 おなまえをおしえていただけますか。 すみませんが / しつれいですが、おなまえは？ I think these sentences aren't for beginners but they are very common here and we have more ways for the formality. I hope this was helpful.

おなまえはなんですか。 Romaji: onamaewa nandesuka? Hope this helps!