How to link multiple datasets in one table - Report Builder 3.0?

I have two datasets that I am attempting to use to populate a single tablix.  For example, I haveDataset 1 that lists values for Date of Sale andItem Number.  I then have Dataset 2 that listsItem Number and Item Description.  Is it possible to create a single tablix that would populate a column fromDataset1 for Date of Sale and a column from Dataset 2 for Item Description, using Item Numberfrom each Dataset to create the relationship between the two.