Login to Stripe
On the left hand side, click on the Payments tab
Underneath Payments, select Disputes
Disputes can be sorted by the following categories:
Needs response
In Review
All Disputes
Won
Lost
Click on the dispute in question
Here you will be able to Counter or Accept the dispute in question. When countering, you should provide evidence on why the chargeback isn't valid, such as: proof the tickets were used, evidence that the same user/cc card engaged in fraudulent activity often, etc.
