When you are in your Stripe Dashboard you can view all your payments taken through ResDiary.
Once you've clicked on the payment you will see the details of their Booking
The Description can come in very handy to identify the Source of the payment.
Blue = Source
A = App = Internal charge
W = Widget = Online Charge
Red = The 4 Digit ResDiary ID
Purple = The Booking Reference
You can also change the description to something more relevant to you by double clicking on the description: