You can apply statement "NEW-PAGE" for insert page break in your report.

Syntax

NEW-PAGE [NO-TITLE or WITH-TITLE] [NO-HEADING or WITH-HEADING].

Example

REPORT ZTEST01.
TABLES: SPFLI.
PARAMETERS: p_carrid LIKE SPFLI-CARRID.
START-OF-SELECTION.
  ...
  ...
  ...
END-OF-SELECTION.
  ...
  ...
  NEW-PAGE.
  ...
  ...