1 converts written data into sound waves. 2  converts the sound waves from a voice into a digital signal. 3  converts letters from the keyboard into digital format. 4  converts digital sound waves into analog sound waves.
Travel agencies make their money in a variety of ways. The products agents sell have built-in fees that result in a profit for the agency. The amount of the fees and the ways in which they are earned and distributed differ by the type of product sold and the suppliers who provide that product to the agency.
The Breakdown of Who Makes What. Different sectors of the travel agency field make money in different ways. Weâve broken down the question of how do travel agents make money into 4 main types of travel agencies: corporate, leisure, custom, the big players. Airline tickets are the lifeblood of corporate agencies.