diff --git a/src/main/java/com/example/nto/controller/EmployeeController.java b/src/main/java/com/example/nto/controller/EmployeeController.java
index 78bf916..a94aacb 100644
--- a/src/main/java/com/example/nto/controller/EmployeeController.java
+++ b/src/main/java/com/example/nto/controller/EmployeeController.java
@@ -52,13 +52,7 @@ public class EmployeeController {
             }
             Employee employee = employeeService.getEmployeeByCode(code);
             List<Booking> bookings = bookingRepository.findByEmployeeId(employee.getId());
-            Map<String, Map<String, Object>> bookingMap = new LinkedHashMap<>();
-
-            for (Booking b : bookings) {
-                bookingMap.put(
-                        b.getDate().toString(),
-                        Map.of("id", b.getId(), "place", b.getPlace().getPlace()));
-            }
+            Map<String, List<Map<String, Object>>> bookingMap = bookings.stream().collect(Collectors.groupingBy(b -> b.getDate().toString(),LinkedHashMap::new,Collectors.mapping(b -> Map.of("id", b.getId(),"place", b.getPlace().getPlace()), Collectors.toList())));
             Map<String, Object> response = new LinkedHashMap<>();
             response.put("name", employee.getName());
             response.put("photoUrl", employee.getPhotoUrl());
@@ -73,5 +67,4 @@ public class EmployeeController {
                     .body("Unexpected error");
         }
     }
-
-}
\ No newline at end of file
+}