I wanted to do something similar a while back, but stopped because I was still too new to coding. I think it's an excellent idea, you just need to narrow down

I wanted to do something similar a while back, but stopped because I was still too new to coding. I think it's an excellent idea, you just need to narrow down your market and update the design accordingly. Doctors, hairdressers, physios... lots of people are looking for something like this. Make an embeddable plugin version for WordPress and physically go shop it around to potential customers. Show them and get feedback.