Hide back button on history and set rightBarButton "Start"
Set NSDictionary *myData for name(key) and email(value)

For randomly selected row, set emailadress:

    NSInteger row = [self.lotteryPicker selectedRowInComponent:0];
    NSString *key = [self.myData.allKeys objectAtIndex:row];
    NSString *mail = [self.myData valueForKey:key];

    NSArray *toRecipents = [NSArray arrayWithObject:mail];