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.
How do I make money as a travel agent? When you make travel bookings for yourself or your clients, our travel suppliers will pay a commission on the travel sale amount. The exact commission percentage can vary between 3% and 20%, with the average being around 14%. Whatever commission we receive, we pay you 80% of that amount.