INTRODUTIONS
Travelling provides the benefit of sightseeing and gives pleasure to the visitor. In addition, it gives scope to an individual to have firsthand knowledge of variegated people inhabiting the world. One cannot appreciate the work of art created by the master hands unless one visit places and things. The purposes of travelling are different for different people. There are some people who travel for the sake of pleasure. The people that are heavily burdened either at their domestic front or at their offices move too far off places for relieving their worries and anxieties.
With the advancement of transport system travelling has become easier than what it was in the primitive days. The modern transport system has made the lives of travelling people easier by decreasing the distance by the swiftness of vehicles. The prevailing journeys do not cost more than those were in primitive days.
After developing the modern technology, everything is so easy for us, it helps us to gain knowledge and mostly we can use it for our own pleasure. For example, they can have ticket reservation by help of the modern technology. They can have their ticket reservation or hotel accommodation in easiest way.
The online reservation system is basically derived from GDS (Global Distribution System) also known as CRS (Computer Reservation System). The online reservation system has its database centrally located which is accessed through an Application Programming Interface (API). With the invent of online reservation system the traveller and the airline got the freedom to book a seat anywhere at any time at their convenience. The traveller can book a ticket at a click of a mouse saving the time and money for the traveller. It has also become a hassle free transaction for both the airlines and the traveller. The online reservation system involves three main actors the database, online operator and a database scheduler. The database scheduler updates the database,