Thai Airways International Public Company Limited takes great support to the clients and staff in all functions consists of 24 hours operation services in providing crew briefing. If it should happen that the client submit to get the flight documents preparation which it possibly including the air traffic service flight plan filing and in-flight assistance and post-flight activities. Other than, the base document should assemble providing computerized flight plan system, fuel load, aviation weather report and supporting information. In this area, the other important functional document also has qualified personnel, holding worldwide aircraft dispatch license with expertise and experience to assure the customers. The company handling over 100 international and domestic flights daily out of the major airports in Thailand, which it is often updates the operational using the latest communication technology. The next section of this report focuses on the research design and data collection methods.