In a JCL job, you need to create a new VSAM dataset and then load it with data from a flat file. Describe the sequence of IDCAMS commands you would use.

The sequence involves using IDCAMS commands such as DEFINE CLUSTER to create the VSAM dataset, followed by LOAD to load data from the flat file into the dataset. This sequence ensures the dataset is properly defined and populated with the required data during the JCL job execution.