1. SMS systems Existed: The airlines send SMS to remind the customers before the flight so that the customer can get the flight on time . Our system: For our SMS systems, we use bulk SMS softwareto provide different kinds of SMS for different group of peoples. Provide the best method for traveling to airport. The customer can also send back the message to the airline for changing the airline. Besides, the system will also call the elderly. To prevent some elderly that didn’t know how to use the SMS.