Booking one out of 4 services but block the 3 other in that timeframe

For a beauty/ nail salon we offer 4 types of nail treatments, 4 different prices. There’s only 1 employee so only 1 treatment possible for the time booked. However I have 4 treatments as products so the calendar doesn’t take into account the already booked / full timings when a new order is placed.

How can we solve this knowing that we have 4 treatments with each a different price.

https://ashleysbeautybar.be/boek-een-afspraak

Replies are visible only to logged in members with an active subscription.