I just had a different/ maybe more annoying experience. Late the other night I made an appt with someone for the following afternoon - and as I was heading down the subway steps he texted to cancel because I hadn’t confirmed that day. I mean, I’d made the appt 12 hours before. If you need a different type of conformation you should probably tell potential clients. On the hunt for a new regular and he and I have mutual friends who said he was sweet and amazing so I had high hopes.