A voice in the drive-through speaker asks, “How can I help y…

A voice in the drive-through speaker asks, “How can I help you?” and Alicia orders her meal. When the car in front of her moves out of the line, Alicia drives up to the drive-through window. An employee opens the window and tells Alicia the price of her meal. After Alicia pays for her meal, she receives her food. This is an example of a: