Cat sitter always late

Not sure if I should say anything or if how I am feeling is unreasonable. I have two cats and I book two visits a day, one for breakfast and one for afternoon. I put down 8 am and 5.30pm as my requested starting time. We had the sitter for two days over Christmas and he was late to each visit but I let it go because it was Christmas. But I booked him again for a week starting last night. Last night I booked him for 5.30 and by 7pm he still had not arrived. I texted him and he said he was at a family dinner and forgot to notify and thst he would be at my house in an hour. I let it go as be turned up 30 minutes later. It's 10.15am now and he still hasn't turned up for my 8am requested visit. I can see my girls walking around and going into the kitchen sniffing their bowls.

Should I say something? Thanks all.

Edit: Thanks everyone for your responses. I contacted Rover who also reached out to the sitter but no response has come through. I feel bad for not even thinking that he may have had an emergency and was instead upset with him not responding. I hope he is okay. Ultimately I decided to go ahead and cancel our booking and contacted another pet sitter who is rushing to our place now. Thanks everyone!

Edit 2: finally heard from him at 2.30pm. He had an emergency with a client from earlier this morning. I understand but I can't justify not responding at all until 2.30pm especially when the app was at 8. He said he was going to go over to my house now but I told him not to and that I had canceled the services about two hours ago. I am glad he is okay now, though.