Learn English – Word or phrase for literally and figuratively

These people are generally employed as "Holiday Representatives", more commonly shortened to "Holiday Reps".

The ubiquitous "Club 18-30" travel company has a page detailing their recruiting requirements for such as position.

Being one of our Club 18-30 holiday reps is a job like no other! It's definitely not for the faint hearted, you'll need to have a great personality, awesome communication skills and enough stamina to keep you going from morning to night!

Typically, these types of reps will organise parties, excursions and other social activities while imparting their local knowledge upon the guests.

There are a few terms for logical fallacies that might fit. In general discussion, I'd call it "jumping to conclusions".

hasty generalization

Hasty generalization is an informal fallacy of faulty generalization by reaching an inductive generalization based on insufficient evidence—essentially making a hasty conclusion without considering all of the variables.

faulty generalization

A faulty generalization is a conclusion about all or many instances of a phenomenon that has been reached on the basis of just one or just a few instances of that phenomenon. It is an example of jumping to conclusions.

proof by example

Proof by example (also known as inappropriate generalization) is a logical fallacy whereby one or more examples are claimed as "proof" for a more general statement.

You might also say that anecdotal evidence or cherry picking is being used.