Store PATH as a variable in centos 7 script

I want to write a script that allows the user to enter a specific file path to use this variable with the find command I tried this but it seems that my syntax is not right enter file path : $PATH find $PATH -size +1M -exec rm {}\; and what if I want the user also to enter the size should I use find $userpath -size $size -exec rm {}\; or something else