when appointment is made by admin the client name is not in email

As an admin when I go into the appointments dashboard in wordpress and click "add new" appointment.

I select a user from the dropdown and create the time etc. (I do not fill in the name field)

When the confirmation email gets sent out to the user, the client name is not filled in. When the email gets sent out to the admin/service provider the client name is filled in.

I know that if I want to users name (CLIENT) to appear in the email that gets sent to them, I need to fill in the name field but unsure why the admin/service provider get the name in the confirmation email even when its not filled out.

Any way to change this?