Sara
proper noun
If sand is spread out you get the given name Sara. You've written your name in sand, right? Now imagine a Sara you know spreading out sand so that it spells her name. Or imagine a pro athlete, like wrestler Doshō Sara (土性 沙羅), judoka Asahina Sara (朝比奈 沙羅), or ski jumper Takanashi Sara (髙梨 沙羅) spreading out the sand. I bet they'd find some skillful ways to do it.
さら
This name uses the on'yomi for both kanji, and you learned those readings with the kanji.
沙羅さんと会釈をして別れました。
Sara-san and I bowed to each other and parted ways.
沙羅は拓哉と一緒に苗を植えるつもりです。
Sara is going to plant the seedlings with Takuya.
ものまね芸人の沙羅さんが名古屋出身だって知ってた？
Did you know that the impressionist Sara comes from Nagoya?