Observer Pattern in .NET

using System;

namespace ObserverPatternClassic
{
	/// <summary>
	/// Summary description for SouthernTravels.
	/// </summary>
	public class SouthernTravels : Observer
	{
		public void UpdateBangaloreAirlinesRout(object Traveller)
		{
			if( Traveller is BangaloreAirlines)
			{

				AddRoutforBangaloreAirlines((BangaloreAirlines)Traveller);

			}

		}

		private void AddRoutforBangaloreAirlines(BangaloreAirlines traveller)
		{
			//Code for adding the new rout to Southern Travel's Travel database.
			Console.WriteLine("new rout No. " +  traveller.TravelRout  + " Added Sucessfully to SothernTravel's Database");
		}

		
	}
		
	}