private async Task <DialogTurnResult> VerifyLuisIntentionStepAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken) { var response = stepContext.Context.Activity.CreateReply(); if (Log) { UltimaMensagem = stepContext.Context.Activity.Text; var intencao = LuisService.ObterIntencao(UltimaMensagem); switch (intencao) { case "BancoDeHorasQuery": response.Attachments = new List <Attachment>() { ObterCardAttachment("HorasCard.json") }; await stepContext.Context.SendActivityAsync(response); UltimaMensagem = stepContext.Context.Activity.Text; return(await stepContext.EndDialogAsync(cancellationToken : cancellationToken)); case "ProximasFeriasQuery": response.Attachments = new List <Attachment>() { ObterCardAttachment("FeriasCard.json") }; await stepContext.Context.SendActivityAsync(response); UltimaMensagem = stepContext.Context.Activity.Text; return(await stepContext.EndDialogAsync(cancellationToken : cancellationToken)); default: await stepContext.Context.SendActivityAsync(MessageFactory.Text("Não entendi sua pergunta...")); UltimaMensagem = stepContext.Context.Activity.Text; return(await stepContext.EndDialogAsync(cancellationToken : cancellationToken)); } } else { return(await stepContext.NextAsync("", cancellationToken)); } }