On your 10to8 account, you have the ability to get your staff assigned to specific services so that you can make sure each staff is taking bookings only for the right ones!
A good example would be a tutoring business, where you have different tutors offering different services (e.g. a tutor can do maths but not geography). Having a feature which allows you to limit your services to specific staff can be essential.
To set this up, head over to "Set Up" > "Staff". Once you have selected a staff member, go to their "Services" section. In there you will be able to select from the drop-down menu the services they are available to take bookings for: