There was this from
Metro Report InternationalVoice-operated ticket vending machine developed
SOUTH KOREA: MediaZen is developing a voice-activated ticket vending machine which will provide passengers with a non-contact means to buy tickets by speaking either Korean or English.
Pilot deployments are planned for November at two airport stations which are used by many international passengers
MediaZen said its research centre has developed speech recognition and synthesis technology which can cope with noisy environments by learning about the acoustics and language models, with natural speech synthesis that speaks like a real person.
But that was in development in 2020, and of course is just software; you'd need to add a some more stuff to it. Like a Renesas RX72N microcontroller, advertised as
Renesas Electronics Ticket Vending Machine is designed for a ticket machine, used in train stations. The design utilizes a thin-film transistor (TFT) display for customers to purchase tickets. The Ticket Vending Machine solution features voice guidance via a speaker and can detect irregularities inside the device with a temperature sensor.
The Renesas Electronics Ticket Vending Machine solution has firmware updates that can be rewritten using a USB. The two RX65N 32-bit microcontrollers (MCUs) recognizes bills and coins.
But that's still just a chip, so you'll need to already have a machine, or else add your own screen ... speaker ... card payment terminal ... coin and note handling ... ticket printing ... power supplies ... housing ... plus a few other bits.
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