When spending on petty cash we need a record of names of persons we give cash to for expenses. See vendor and customer names are not really applicable.
For example I give Mr X $1 to go purchase drinking water from a local store; -
1) you don't expect me to record all local stores as different vendors..
2) I need various reporting of persons I give cash to because I might be giving cash to 10s of persons every time for different expenses e.g bus fares etc and i need to know a list of persons with pending receipt s not received for example. I cant do a proper easy reporting with the current layout of recording expense we have at the moment.

So a names section for recording expenses is a main priority