In narative storries are their different parragraphes for each person speaking?

If this question is in regards to dialogue, yes. for each new speaker, you separate it by paragraphs for clarity. paragraphs usually represent new ideas, and this is true for dialogue; every speaker brings a new idea. additionally, not every quote necessarily has something like "tom said" or "jane muttered" so you create new paragraphs to make sure that the speaker isn't confused.