Procedure for creating new report , dataset , datasource

when i start to work on first report in SQL Server Reporting Services.

I first create one Shared Data source then One DataSet and then create Report and assign that dataset to this report.

Now I want to create new report and when try to create it is not asked with me that any dataset is available to attach with the new report.

and I dont want to enter query in the new report . I want to create dataset with the Stored Procedure and then assign to this report.

Pls tell me the proper procedure for creating new report , dataset and datasource