You can buy and return a Ukrzaliznytsia ticket on the Viber and Telegram

social networks. “From October 1, UZ passengers will be able to purchase tickets for all long-distance trains, including high-speed and regional routes, in the official chatbot on Viber and Telegram.” Chatbot functions will include ticket sales and returns; food order; display of traffic schedule; notification of arrival, train delay, track number; and so on.