When making travel arrangement for a customer through any computer reservation system, it is vital for an agent to know the difference between timetable and availability display. One might find an availability display a little bit difficult to understand since it gives more information on a particular flight. However, quite often is that a customer just wants to find out if there is a seat available in his or her interested class of service which might be first class, business or economy class. It is no need to explain the variety of booking code in each class.
Timetable or schedule display shows flight of all airlines between a specific city pair for a week period. The display shows the frequency of flight between two airports, and which airline operates on a particular day of the week. When retrieving information from a timetable a customer might not have a specific flight in mind but would like to find out general information about his or her interested route such as airlines operating and time. The following is an example of a timetable display from Bangkok to Hong Kong.