Booking a dental appointment where I go is like pulling teeth.
You have to call, wait in a queue for who knows how long, listen to their self promotion and how much they “value my patience” only to find out the next appointment is often a month or more away.
Same for my doctor and optometrist yet they have moved into the 2020’s and have online booking systems. The wait is still too long but at least the booking process is quick and painless.
If you are still using outdated processes in your business you could be putting your customers through unnecessary pain.
In a world where there are options, do not make it harder than it needs to be.