Semi related, does anybody know how to tell Google to send an sms message through Hangouts? If I say okay Google hangouts message Alice, it sends an hangouts m

Semi related, does anybody know how to tell Google to send an sms message through Hangouts? If I say okay Google hangouts message Alice, it sends an hangouts message instead of sms. But if I say okay Google message Alice, it sends it through the old message all instead of Hangouts and takes forever to propagate the conversation to the unified view in Hangouts.