Finally, my problem is not fixed
Well, I found that I can set language in a code card with user.TranslatorAgent.language = 'fr'
or I can use the Set User Language card and set fr in the input.
Well, both ways I have the same result.
If I use fr as value, all the conversation will be in French, except the automatic response in the Phone Number Card -> Cancel option "Confirm before cancelling". There, the user choice will display in English : Yes or No
If I use French as value, then the Phone Number Card -> Cancel option "Confirm before cancelling" will display in French : Oui or Non. But in the conversation at some specific moments it will translate the hardcoded text to an English version.
Weird no?
Anyone can help?
I want my bot to be in French only.