Send Data from ViewController to ContainerViewController through Segue's Identifier

gistfile1.m

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([[segue identifier] isEqualToString:@"dialogScene"]) {
        self.data = 1;
        
        ViewController *controller = [segue destinationViewController];
        controller.data = self.data;
    }
}

// In destinationViewController.h
@property (nonatomic, strong) NSDictionary *data;

gistfile2.m

// If there is a Navigation Controller in Between
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([segue.identifier isEqualToString:@"preBookingScene"]) {
        UINavigationController *navController = segue.destinationViewController;
        CSDialogViewController *controller = [navController viewControllers][0];
        controller.data = self.data;
    }
}