diff --git a/02_ProjectOrientedSessions/Session04/Session04.md b/02_ProjectOrientedSessions/Session04/Session04.md
index f7a8312..7f99f61 100644
--- a/02_ProjectOrientedSessions/Session04/Session04.md
+++ b/02_ProjectOrientedSessions/Session04/Session04.md
@@ -74,34 +74,37 @@ public interface ITransportationRepository : IRepository<Transportation, long>
 📂 Suggested Folder: Infrastructure/Services/Services/TransportationRepositories
 
 ```cs
-public async Task<IEnumerable<Transportation>> SearchTransportationsAsync(
-			short? vehicleTypeId,
-            int? fromCityId, int? toCityId,
-            DateTime? startDate, DateTime? endDate)
-{
-    var query = DbContext.Transportations
-			    .Include(x => x.Vehicle)
+public class TransportationRepository :
+        BaseRepository<ApplicationDBContext, Transportation, long>,
+        ITransportationRepository
+    {
+        public TransportationRepository(ApplicationDBContext dbContext) : base(dbContext)
+        {
+
+        }
+
+        public async Task<IEnumerable<Transportation>> SearchTransportationsAsync(
+            short? vehicleTypeId,
+            int? fromCityId,
+            int? toCityId,
+            DateTime? startDate,
+            DateTime? endDate)
+        {
+            var query = DbContext.Transportations
+                .Include(x => x.Vehicle)
                 .Include(x => x.FromLocation).ThenInclude(x => x.City)
                 .Include(x => x.ToLocation).ThenInclude(x => x.City)
                 .Include(x => x.Company)
                 .AsQueryable();
-    query = query.Where(x => vehicleTypeId == null || x.Vehicle.VehicleTypeId == vehicleTypeId.Value);
-    
-    query = query.Where
-    (x => fromCityId == null || x.FromLocation.CityId == fromCityId.Value);
-    
-    query = query.Where
-    (x => toCityId == null || x.ToLocation.CityId == toCityId.Value);
-    
-    query = query.Where
-    (x => startDate == null || x.StartDateTime.Date == startDate.Value.Date);
-    
-    query = query.Where
-    (x => endDate == null ||
-    (x.EndDateTime.HasValue && x.EndDateTime.Value == endDate.Value.Date));
+            query = query.Where(x => vehicleTypeId == null || x.Vehicle.VehicleTypeId == vehicleTypeId.Value);
+            query = query.Where(x => fromCityId == null || x.FromLocation.CityId == fromCityId.Value);
+            query = query.Where(x => toCityId == null || x.ToLocation.CityId == toCityId.Value);
+            query = query.Where(x => startDate == null || x.StartDateTime.Date == startDate.Value.Date);
+            query = query.Where(x => endDate == null || (x.EndDateTime.HasValue && x.EndDateTime.Value == endDate.Value.Date));
             
-    return await query.ToListAsync();
-}
+            return await query.ToListAsync();
+        }
+    }
 ```