diff --git a/Examples/Cinema.cs b/Examples/Cinema.cs
new file mode 100644
index 0000000..5b31c00
--- /dev/null
+++ b/Examples/Cinema.cs
@@ -0,0 +1,7 @@
+namespace Examples
+{
+    public class Cinema : ITicketing
+    {
+        public void Reserve() { }
+    }
+}
diff --git a/Examples/Concert.cs b/Examples/Concert.cs
new file mode 100644
index 0000000..e05e955
--- /dev/null
+++ b/Examples/Concert.cs
@@ -0,0 +1,7 @@
+namespace Examples
+{
+    public class Concert : ITicketing
+    {
+        public void Reserve() { }
+    }
+}
diff --git a/Examples/EmailService.cs b/Examples/EmailService.cs
new file mode 100644
index 0000000..24f63d3
--- /dev/null
+++ b/Examples/EmailService.cs
@@ -0,0 +1,7 @@
+public class EmailService : INotificationService
+{
+    public void Push(string message)
+    {
+        Console.WriteLine($"Sending Email: {message}");
+    }
+}
diff --git a/Examples/Flight.cs b/Examples/Flight.cs
new file mode 100644
index 0000000..9868aa1
--- /dev/null
+++ b/Examples/Flight.cs
@@ -0,0 +1,7 @@
+namespace Examples
+{
+    public class Flight : ITicketing
+    {
+        public void Reserve() { }
+    }
+}
diff --git a/Examples/INotificationService.cs b/Examples/INotificationService.cs
new file mode 100644
index 0000000..105d544
--- /dev/null
+++ b/Examples/INotificationService.cs
@@ -0,0 +1,4 @@
+public interface INotificationService
+{
+    void Push(string message);
+}
\ No newline at end of file
diff --git a/Examples/ITicketing.cs b/Examples/ITicketing.cs
new file mode 100644
index 0000000..48548dc
--- /dev/null
+++ b/Examples/ITicketing.cs
@@ -0,0 +1,4 @@
+public interface ITicketing
+{
+    public void Reserve();
+}
\ No newline at end of file
diff --git a/Examples/NotificationService.cs b/Examples/NotificationService.cs
index 498d14d..a14fe63 100644
--- a/Examples/NotificationService.cs
+++ b/Examples/NotificationService.cs
@@ -1,15 +1,15 @@
-public class NotificationService()
+public class NotificationService
 {
-    public ... Get(string type)
+    private readonly INotificationService _notificationService;
+
+   
+    public NotificationService(INotificationService notificationService)
     {
-        if (type == "Email")
-            return new ...();
-        else if (type == "SMS")
-            return new ...();
-        //else if (type == "Push")
-        //	return new ...();
+        _notificationService = notificationService;
+    }
 
-        else
-            throw new ArgumentException("Invalid notification type.");
+    public void PushNotification(string message)
+    {
+        _notificationService.Push(message);
     }
-}
+}
\ No newline at end of file
diff --git a/Examples/SmsService.cs b/Examples/SmsService.cs
new file mode 100644
index 0000000..da9d598
--- /dev/null
+++ b/Examples/SmsService.cs
@@ -0,0 +1,7 @@
+public class SmsService : INotificationService
+{
+    public void Push(string message)
+    {
+        Console.WriteLine($"Sending SMS: {message}");
+    }
+}
diff --git a/Examples/Ticketing.cs b/Examples/Ticketing.cs
index 9642fb9..0205c14 100644
--- a/Examples/Ticketing.cs
+++ b/Examples/Ticketing.cs
@@ -1,14 +1,14 @@
-public class TicketService
+public class Ticketing
 {
-    public ... Get(string ticketType)
+    private readonly ITicketing _ticketing;
+
+    public Ticketing(ITicketing ticketing)
     {
-        if (ticketType == "Movie")
-            return new ...();
-        else if (ticketType == "Concert")
-            return new ...();
-        else if (ticketType == "Flight")
-            return new ...();
-        else
-            throw new ArgumentException("Invalid ticket type.");
+        _ticketing = ticketing;
     }
-}
+
+    public void ReserveTicket()
+    {
+        _ticketing.Reserve();
+    }
+}
\ No newline at end of file