I wish you a safe journey.为什么不是I wish you have a safe journey?

I wish you a safe journey,此处,主语+谓语（wish）+宾语（you）+宾语补足语
I wish you have a safe journey?,此处,主语+谓语+以that引导的宾语从句,在宾语从句中that是可以省去
两句话表达都是对的,不过是语法不一样.