In today’s world, a lot of things are possible, but not everything is possible for everyone. For instance, some people cannot go on a vacation because of financial constraints, and others cannot go on a vacation because they do not have a ticket for the desired destination. And in both cases, they are forced to choose the next best option. But that is not the only option, and there is a third option, which is to go to the railway station and find out what train is there, what class of service is it, and how many seats are there in the available coach.