To redirect to a page, you can try this:
add_action( 'template_redirect', 'wpse_290317_redirect_user_to_page' );
function wpse_290317_redirect_user_to_page()
{
$current_user = wp_get_current_user();
if( 'username' == $current_user->user_login )
{
wp_redirect( 'http://redirect-page-url' );
exit;
}
}
But I think you want to redirect on login, right? In that case, the following code should help:
add_action( 'login_redirect', 'wpse_290317_redirect_user_to_page', 999, 3 );
function wpse_290317_redirect_user_to_page( $redirect_to, $request, $user )
{
if( 'username' == $user->user_login )
{
$redirect_to = 'http://redirect-page-url';
}
return $redirect_to;
}