system
A chat on subreddit /r/NoStupidQuestions
human
Places like Starbucks have lots of specialty lattes that are seasonal - so if you see it listed on a menu like "gingerbread latte" it's definitely already sweetened. But a latte just in its own may not be sweetened.

If for some reason what you end up with isn't sweet enough, don't hesitate to ask them to add syrup or give you some sugar to add.

As a person that frequents cafes, sometimes I do end up with a drink that isn't exactly what I like - but I learn each time a little more how to order something I like most, and make my order different next time if necessary.~

I usually end up loving the barista recommended drinks, written on a sign or otherwise - they usually love helping give recommendations!
gpt
I don’t know if this helps but getting something not quite right (e.g., a drink from Starbucks) no matter how correctly you order it is a universal situation. So, OP, try not to feel discouraged if it takes a few tries to get it right!