I tried every constellation to find the right solution. There is 2 different places 2 different services 2 different persons   It should be this way: 1 place -2 different servicese – 1 person- If one oft the services is chossen for this 1 person, the slot for the other service should also be bloggt. But this never happend. How can a person doing 2 different services at the same time? Can you help me finding the right solution?