If it has a price and/or if it can be booked, you have to use an
The item that gets offered could be a
Product (this is not only for tangible things!), a
Event, or a
I think in your case
Event might make sense, but this ultimately depends on your specific case (your understanding of the tour/travel packages) and which properties you want to provide.
Event is only appropriate if the date of the tour/travel is settled. If it’s instead something like a boilerplate,
Service should be used.
Note that you don’t have to provide an item for the thing which you offer. If you don’t need more properties (and if you don’t want to provide the additional data that something is an
Event or whatever), you could use
¹ inverse in case of