After I was married, my new wife and I wanted to travel to Disney World in Florida.  We had to get there by a plane, so we decided to reserve some tickets.  To do this, we looked up prices online during the time that we wanted to go.  We found some ticket prices that were good, so we decided to buy some tickets.  We went to the website of the airline and read all of the conditions we needed to follow in buying a ticket.  We clicked the dates on a calendar of when we were going to need to be flying to and home from Florida.  The total amount of money we needed to pay appeared on our screen.  We put in the info of our credit cards and then the money was given to the airline.  The tickets were now saved for my wife and I to fly. 
Question: Did they use a travel agent?
No they did not