index match multiple unique values based on one criteria

This one has me confused because I cant put these in a list, they have to go to the right up to 3 columns.

In column A I have a list of customers
In column B I have a list of appointments

In column E I have a list of Unique Appointment numbers
In column F,G, and H I basically want to transpose the unique customers next to their respective Appointment numbers

I can do this easily if i make a list but trying to work from left to right in multiple columns has me perplexed.

I need a formula to copy down in columns F,G, and H

I have provided examples in the upload of what the data should look like.

Many thanks.