diff --git a/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/RasaModelManager.java b/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/RasaModelManager.java
index a30ca9fa..188c0ba5 100644
--- a/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/RasaModelManager.java
+++ b/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/RasaModelManager.java
@@ -57,7 +57,7 @@ public class RasaModelManager {
                     log.info("wakeUpInterruptServer: restart server port for {} failed",rasaModelInfo.getPort());
                     throw new RuntimeException(e);
                 }
-                log.info("wakeUpInterruptServer: restart server port for {} success ！",rasaModelInfo.getPort());
+                log.info("wakeUpInterruptServer: restart server port for {} success ",rasaModelInfo.getPort());
             }else {
                 log.info("wakeUpInterruptServer: port:{} is run..",rasaModelInfo.getPort());
             }
diff --git a/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/impl/RasaTalkServiceImpl.java b/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/impl/RasaTalkServiceImpl.java
index e4ad0c4c..b06a7890 100644
--- a/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/impl/RasaTalkServiceImpl.java
+++ b/virtual-patient-rasa/src/main/java/com/supervision/rasa/service/impl/RasaTalkServiceImpl.java
@@ -16,6 +16,7 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
+import java.util.UUID;
 import java.util.stream.Collectors;
 @Service
 @Slf4j
@@ -38,6 +39,7 @@ public class RasaTalkServiceImpl implements RasaTalkService {
         String rasaUrl = getRasaUrl(rasaModelInfo.getPort());
         log.info("talkRasa: url is: {}",rasaUrl);
 
+        rasaReqDTO.setSender(UUID.randomUUID().toString());
         String post = HttpUtil.post(rasaUrl, JSONUtil.toJsonStr(rasaReqDTO));
 
         List<RasaResDTO> list = JSONUtil.toList(post, RasaResDTO.class);