There is not a script step to create a new table. Usually there is no reason to create a table by script, could you explain in more detail what you are trying to do, maybe there is another method to do what you want.
If by "table" you mean you want to create another table like those you would create manually at Manage | Database | Tables, this is not a good idea. While it is possible to create a new table, you will be unable to also create a new layout for that table nor link it to existing tables in relaitonships via a script. Such steps have to be done manually.
But as a one time way to produce a new table, you can use Import Records with the "new table" option as the target table to create the table.
But perhaps you just need to use a find to pull up a found set of records. That can be done without problems in a FileMaker database.