applyPromptTypeParams(request, "noresults");
        request.setStream(true);

        streamChatWithConcurrencyControl(request, callback);
    }

    @Override
    public void generateDocumentNotFoundResponse(final String userMessage, final String documentUrl, final List<LlmMessage> history,
            final LlmStreamCallback callback) {
        final LlmChatRequest request = new LlmChatRequest();

                    phaseStartTime = System.currentTimeMillis();
                    callback.onPhaseStart(ChatPhaseCallback.PHASE_ANSWER, "Generating response...");
                    llmClientManager.generateDocumentNotFoundResponse(userMessage, documentUrl, history, (chunk, done) -> {
                        fullResponse.append(chunk);
                        callback.onChunk(chunk, done);
                    });