to inform customers about new products, experiences, services and other information that they need to be know.
to persuade customers to purchase a destination or product, to perceive a destination or product differently or change a brand preference (as an example to perhaps change a customer’s preference for a destination or change of accommodation at a destination) or
? to remind customers about a destination or product, where it may be purchased or how it may be purchased (booked).
In the “old days”, advertising was used to reach a broad range of people usually to promote a destination or product. Today, tourism uses targeted advertising which is far more cost/effective where generation of business is the priority.