How can I schedule a text message with Siri?

I want to schedule sending a txt msg at a specific time and Siri says

To schedule a text message:

1. Open the Messages app.

2. Tap the Apps button, then tap Send Later.

3. Tap the time to open the scheduler, then choose when you want to send your message.

4. Enter a message, then tap the Send button.

what does that say???

[Re-Titled by Moderator]