How to create a one-time randomizer in a WhatsApp chatbot

Hi everyone! 👋

I want to create a WhatsApp chatbot that works as a randomizer and can be used only once per user.

The bot should reply with “Yes” or “No”, where “Yes” has a 15% chance.
I couldn’t find a clear example of how to do this.

Is there a simple way to set this up?

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