mistaken identity

Just recently we have had quite a few new people to look after. Most of them I only see once in a blue moon because I have my own regular ladies and gents to look after.
Yesterday my senior care worker rang up to ask if I could take on a few extra calls as someone had gone off sick. As she rattled off the names I visualised my route until the last one which was a lady called Janine.
'Janine?' I asked as I couldn't place the name
'Yes, you know the lady; never normally wants much so we sit and chat for ten minutes'
'Oh yes I know her' I replied cursing under my breath, as the lady lives on the other side of town to the others.
Having finished the first two calls, I made the fifteen minute journey across town muttering under my breath that there must have been another carer who was nearer to do the visit.
I enter the house to find the lady in her kitchen
'Hello I haven't seen you for a while' she said
'Hello Janine, How are you today/' I replied,
'Not too bad, I am a bit cold though.'
'Is the heating on'
'Oh expect my husband forgot this morning as he was in a hurry'
'Oh okay, I'll put it on then shall I'  whilst moving across to the thermostat. 'Have you had breakfast'
'No, not yet'
I dutifully make her breakfast with warm milk and check she has taken her meds before looking for the record of care book. It was not in it's usual place. so I asked Janine where it was.
'I am not sure, it might be in the book case'
'Nope that's the people who do your housework'
'I don't know then
I spent about five minutes looking for the book and eventually gave up, deciding to leave a note for her husband on a scrap piece of paper. On the kitchen table was a note pad and as I picked it up I noticed someone had written 'Care cancelled from the 12th'
Today was the 17th.
'Your name is Janine isn't it'
'No Jean'
'Sorry, I am not supposed to be here'
'Oh well never mind dear, It was nice to see you'
A quick call to my senior and I established that Janine lived five minutes away from where I was about half an hour previously.