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I am trying to figure out if a scheduling conflict prevented people from purchasing tickets this weekend. I would like to find out the following:

Patron purchased tickets to Event A

Patron purchased tickets to Event B

but did NOT purchase tickets to Event C. 

 

I created three lists but I am not generating any data when I run my lists using "In" and "not in". Does anyone have any advice how to best find my data?

 

Thanks!

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