Why won't this dialog appear?

I was trying to do was, when a player clicks on a choice, a dialog will appear on another brick. it won't pop up on the required brick help?

local part = game.Workspace.Bricks

script.Parent.DialogChoiceSelected:connect(function(player, choice)
    if (choice == script.Parent["Choice1"] then
        local new = Instance.new('Dialog',part)
        new.InitialPrompt = 'Hello!'
    end
    if (choice == script.Parent["Choice2"] then
        local new = Instance.new('Dialog',part)
        new.InitialPrompt = 'Hola!'
end
    if (choice == script.Parent["Choice3"] then
        local new = Instance.new('Dialog',part)
        new.InitialPrompt = 'Hi!'

    end
    end)