{
   "format_version": "1.20.50",
   "minecraft:npc_dialogue": {
      "scenes": [
         {
            "scene_tag":"npc_test002",
            "text":"Hello!",
            "buttons":[
                {
                    "name":"Hi",
                    "commands":[
                        "/execute as @initiator at @s run say hi"
                    ]
                },
                {
                    "name":"Hello",
                    "commands":[
                        "/execute at @p run say Hello"
                    ]
                }
            ]
        }
      ]
   }
}