Customer reservation history
From hoteliga
hoteliga gives you access to all reservations made from a specific customer.
You can go to Options > Customers and by clicking 'Show Filter' you can search for a specific customer as shown below.
Once you click on the customer, the 'customer window' will open for you.
In the reservations tab, you can see all the reservations this customer made. If you wish to see the details or more information about a specific reservation, you can simply press the 'reservation' button,and you will be redirected to the relevant 'reservation window'.