Bot框架，另一个对话中的对话

Question

我使用QnA Maker创建了一个机器人，根据答案我应该返回相同的答案或调用另一个服务，在我的例子中是从JSON组装表单流。

但是在调用此服务时，我启动了一个新的Conversation，因此它不会返回到模拟器。

我正在另一个对话中创建对话。必须有一些东西丢失。

RootDialog.cs：

[Serializable]
public class RootDialog : QnAMakerDialog
{
    public RootDialog() : base(
        new QnAMakerService(
            new QnAMakerAttribute(
                ConfigurationManager.AppSettings["QnaSubscriptionKey"],
                ConfigurationManager.AppSettings["QnaKnowledgebaseId"],
                "Não encontrei sua resposta",
                0.5
                )
            )
        )
    {

    }

    protected override async Task RespondFromQnAMakerResultAsync(IDialogContext context, IMessageActivity message, QnAMakerResults result)
    {
        var primeiraResposta = result.Answers.First().Answer;

        if (primeiraResposta.IndexOf("form") == -1)
        {
            await context.PostAsync(primeiraResposta);
            return;
        }

        await Conversation.SendAsync(message, () => Chain.From(() => FormDialog.FromForm(() => Formulario.JsonForm.BuildJsonForm(), FormOptions.PromptFieldsWithValues)));

        return;

    }
}

MessagesController.cs

public async Task<HttpResponseMessage> Post([FromBody]Activity activity)
{
    var connector = new ConnectorClient(new Uri(activity.ServiceUrl));

    if (activity.Type == ActivityTypes.ConversationUpdate)
    {
        if (activity.MembersAdded.Any(o => o.Id == activity.Recipient.Id))
        {
            var reply = activity.CreateReply();
            reply.Text = "Hello...";
            await connector.Conversations.ReplyToActivityAsync(reply);
        }

    }
    else if (activity.Type == ActivityTypes.Message)
    {
        // HEREE!!!
        await Conversation.SendAsync(activity, () => new Dialogs.RootDialog());

    }
    else
    {
        HandleSystemMessage(activity);
    }
    var response = Request.CreateResponse(HttpStatusCode.OK);
    return response;
}

模拟器的响应：

  

我无法发送，重复