Crystal Reports Details from 2 different table

Message

HiI appreciate the help of this forum in my computng life! thanks a lot for all supporters.

I have a report where i need to get items from 2 different tables with a common criteria. I will explain with the below example:

Table1: Asset list (contains Assetname, Serial Number, Owner)
Table2: Service list (ServiceName, Serial Number, Owner)

I want to generate a report with all product names, service names, Serial numbers under an owner. The owner name is same in both tables. The report output should  like this:

Owner: John Smith
Product                       Serial                   
================================
Asset Name1                1234
Service name1              3233
Service Name2              3232
Asset Name2                3235
etcc..

I can choose the report expert parameter as Owner. Please help how to design this to display the details one by one down from different tables.

Thanks again