In an alarm, there is only one parameter to set. In more complex tasks, chat is a bad ui because it does not scale well and it does not offer good ways to arrange information. Eg if I want to buy something and I have a bunch of constraints, I would rather use a search-based UI where i can fast tweak these constraints and decide. Chathpt being smart or not here is irrelevant, it would just be bad ui for the task.
You're thinking in wrong categories. Suppose you want to buy a table. You could say "I'm looking for a €400 100x200cm table, black" and these are your search criteria. But that's not what you actually want. What you actually want is a table that fits your use case and looks nice and doesn't cost much, and "€400 100x200cm table, black" is a discrete approximation of your initial fuzzy search. A chatbot could talk to you about what you want, and suggest a relevant product.
Imagine going to a shop and browsing all the aisles vs talking to the store employee. Chatbot is like the latter, but for a webshop.
Not to mention that most webshops have their categories completely disorganized, making "search by constraints" impossible.
Funny, I almost always don't want to talk to store employees about what I want. I want to browse their stock and decide for myself. This is especially true for anything that I have even a bit of knowledge about.
The thing is that "€400 100x200cm table, black" is just much faster to input and validate versus a salesperson, be it a chatbot or an actual person.
Also, the chatbot is just not going to have enough context, at least not in it's current state. Why those measurements? Because that's how much room you have, you measured. Why black? Because your couch is black too (bad choice), and you're trying to do a theme.
Even when going to a shop, I prefer to look into the options myself first. Explaining a salesperson what I need can take much more time, and then I am never sure if they just try to upsell, if I can explain my use case well etc. The only case where I opt for a salesperson first is when I cannot translate my use case to specification due to high degree of technical or other knowledge needed. I can imagine eg somebody who knows nothing about computers ask "I want a laptop, with good battery, I would use it for this and that", the same way they would ask a salesperson or a technical friend. But I cannot imagine using such an LLM to look for a table where I need it to fit measurements etc, or anything that is not inaccessible in terms of product knowledge. If I know the specifications, opting for an AI chatbot is inefficient. If not, it could help.
