How to spell our baby girl's name by pronunciation?

We like the name Callista/Kallista but we want it to the double L "yee" sound. Typically Callista is pronounced "Cah-LISS-tah" and we would like to have the "Cah-Lee-stah" sound instead. Any suggestions so this would translate well? I speak spanish so in my mind the double L should make a "yee" sound, but in America this is not the case.