I do not understand how to choose a ticket that allows me to travel on any of the train times for that day.The "fare conditions" information is not clear. When I click it, I see the following information as "Tariff Conditions" for the Swiss part of my International ticket. It does not change no matter which ticket I choose:1) SEMI_FLEX with "1× Connection Ticket International: Basel SBB-Rueras - Fully flexible fares offer"2) SEMI_FLEX with "1× Discounted International Extension Ticket: Basel SBB-Rueras - Partially flexible fares offer"3) PETIT_PRIXS NON_FLEX.None of these Swiss trains have seat reservation available. ***I do not understand how to choose a ticket that allows me to travel on any of the train TIMES for that day.***No matter what I choose, "Tariff Conditions" always says this:Discounted International Extension Ticket: Basel SBB-Rueras - Partially flexible fares offerDiscounted International Extension Ticket are available for international journeys in 1st or 2nd class. Subject to availability.Validity: only valid for the selected travel date and the selected public transport services (booked trains)*.Reduced prices for Half Fare Travelcard holders, children aged at least 6 and under 16.Discounted International Extension Ticket cannot be bought for bicycles.Exchanges / refunds are subject to the terms and conditions of the international ticket. * Changes to class of travel, routes or trains may not be made with a Discounted International Extension Ticket.