Question 16 - 18 refer to following conversation:

Good morning, everyone. (86) My name is Gordon Wilson, and I'm the manager of this branch of Quicksaver Supermarket. It's time to start your training. As checkout operators, you will be responsible for totaling up our customers' groceries and receiving their payments. (87) We recently finished a large renovation at our store. The results are impressive. We have increased our total number of checkouts from twenty to twenty- eight. We also recently conducted a survey among our staff and customers (88) to find out what type of uniform they like the most. The new shirts and pants look very stylish, and you'll each receive a set after the lunch break. Now, let's go to the checkouts and begin. 

16. Who most likely is the speaker?