Also - if you miss random responses from Alexa, you can use this technique.
alexa_confirm.yaml:
>
{%- set responses = [
"Whatever",
"No Problemo",
"Sure Thing",
"Done",
"Got it",
"Allright"
] -%}
{% set rindex = (range(0, (responses | length - 1) )|random) -%}
{{responses[rindex]}}
Lists in Jinja are zero-based, that’s why 1 is subtracted from the playlist length when picking a random index.