All employees there can belay but you should call ahead to see if they have more than one employee available, they probably won't belay if theres just one employee AND you have to pay. Anytime I go without a friend, there's always people there you can ask that are also climbing and they will top rope with you.
You can pay extra to have the employees belay you
Joseph Stearns answered well. I would say the same. Bouldering is another good option.
Thanks! Your answer is awaiting moderation.