In my experience over the last 20 years, web masters are going the way of the Dodo Bird...they are too expensive, they don't manage updates quickly and a lot of them have difficultly managing multiple clients well.
Do you know WordPress? If you do, it would probably be economical for you. Others affordable CMS options to use are Weebly or Wix. (probably not Squarespace as it is more geared to ecommerce type sites)
We use Wix. I have experience in Marketing, Graphic and Web Design, and Photography. It was pretty easy! They have great templates and their Hotels app is great as well. If you already own your domain, then beside renewing that annually, it just a couple hundred dollars for their hosting...can't beat a deal like that! I have also built site for others who love Wix!
Each CMS will have strengths and weaknesses. Researching the options for each, or knowing someone who can help you assess your needs, is the first step!
Of course all websites, CMS programs, and reservation options all vary by the type of Inn you are, your location and the services you oiffer..