A kind person to sit with my mother on Wednesday and Friday afternoons in Coyoacán

I'm Araceli, and I look after my mother at home in Coyoacán. Isabel has Parkinson's and should not be alone for long stretches. I work part-time at the shop, and the gap on Wednesday and Friday afternoons is the hardest part of my week. What I need is someone calm and reliable to be in the house from about 1pm until 5.30. Mostly that means company, a cup of tea, lunch and a short walk if the weather is kind. No lifting and no medical care. Isabel loves old films and will talk your ear off about it. I'm home before dark and will always leave the phone numbers of the doctor and a neighbor. I'd like to meet you first with Isabel present, and I'm happy to give a reference from our neighbor. If you have done care work before, wonderful, but kindness matters more. I'll be so grateful for any help at all.