Lookup Tables in Lowercase vs Title


I have a quick question. I’m using lookup tables to fetch the people names as an entity. It works well for title case names (because lookup table includes only title case of name such as Mike, Robert but not mike or ROBERT). In the custom component even though I convert the utterance into title case, I cannot get entity for people name, unless it is originally put as title case by the user. I mean if the user puts “Hello I am mike” it does not catch but it only catches “Hello I’m Mike”. Is there any other way rather than putting lowercase/uppercase of the names into lookup table? I do not want to enlarge lookup table just for that purpose.