Part Time Care Giver / Cook (La Mesa)

I am looking for a part time caregiver for my 90 year old mother who lives with me.
Duties include cooking a meal, light housework and companionship when I am traveling.
She can walk with her walker but is a fall risk.
Some weekend time needed.
Shifts will be probably 4 hours.
Must be non smoking.
Must be ok with my dog who is in the house with mom and super friendly.