Write a web based application that allows a customer to order a package trip to Rome. The page is provided by travel.html should ask the user for the number of people traveling and the number of nights to reserve. These inputs will be submitted to travel..php for processing. This program should calculate: the cost of the airline tickets ($875 per person), the cost f the hotel ($110 a person for each night), and the total cost. The program should display the number of people traveling, the number of nights, the cost of the airline tickets, the cost of the hotel, and the total cost.