I think it is just me but I find this 'book me a concert and fancy dinner' schtick rather boring. May be well off people are so busy and book these things so often that these virtual assistant really save time if price is of no concern to them.
* Set up an alarm
* See the Distance
* Search nearby places/restaurants/gas stations
* Play some song
* Look up facts
* Look up news
* See my agenda for the day
* Search for my personal photos and maybe much more....
I rarely use the voice input. The thing I liked about allo is that I can chat with it. Even when i'm in a crowded bus, I can use my assistant instead of saying "OK Google".