User for instructor always displays free

[VincentvanMedenbach]

Reported By:Vincent In version: 5.0 Describe the bug Whenever you have an appointment with a user for the instructor it does separate it from the free ones but doesn't set the name correctly.

To Reproduce Steps to reproduce the behavior:

1. Login as instructor
2. Go to dashboard

Expected behavior Reserved appointments have a username

Screenshots

Platform (Optional):

• Device: [e.g. iPhone6]
  • OS: [e.g. iOS]
  • Browser [e.g. chrome, safari]
  • Version [e.g. 22]

Additional context Add any other context about the problem here.

[VincentvanMedenbach]

Everything okay in frontend, backend endpoint for instructor appears to place user object in array(for student it just returns the user obj)

[VincentvanMedenbach]

Fix ready for release 6.0