How do I disperse food and drinks to my guests?
You do not need to disperse food and drinks to your guests. They will walk around the resort and choose what to do based on what their needs are and what you have available in the resort. For example, if they are very hungry, they will walk to a restaurant. If your guest are hungry it's because they don't have access to a suitable restaurant nearby.
For more information on these topics see these pages:
By the way, sometimes a goal will require you to create a particular product and give it to the goal. This is separate to guest happiness. If a goal requires a product, make the product, collect it and "give" it to the goal by opening the goal and tapping the "give" button.