Seeking Part-time Senior Care Provider In Clarendon Hills

I am seeking a senior care provider for my mother who lives independently in a condo. She is quite sharp but needs some simple supports such as companionship, help with errands/shopping, & some light house keeping. She'd like to have someone come from 10-noon twice a week (T/Th) to start. There are occasions where she may need some additional support on days other than Tue or Thur, so a caregiver who has a flexible schedule would be ideal because on an occasional basis when her back acts up she needs someone to stop by briefly on those days. Up to date references are needed.