It's Eagle City Parks and Recreation department you must contact if you want to reserve a section under the pavilion. I think it costs $50-$75 at the most.
Yes its easy to do online too.
U have to reserve online I think through eagle chamber website or eagle city . But one table u might not have to reserve I would go online and see if much of it is reserved on the day in question.
I would contact City Hall. They should know who to contact if they aren't the ones able to reserve it for you.
Thanks! Your answer is awaiting moderation.