@startuml |Commuter| start :Start Session; |Ticket vending machine| :Request Trip Info; |Commuter| :Provide Trip Info; |Ticket vending machine| :Process Trip Info; :Request Payment; |Commuter| :Provide Payment Info; |Ticket vending machine| :Process Payment; if() then ([card with pay]) |Bank| :Authorize Card Payment; else ([pay with cash]) endif |Ticket vending machine| :Dispense Ticket; :Ticket] |Commuter| :Get Ticket; |Ticket vending machine| if() then ([paid with cash and with change]) :Dispense Change; :Change] |Commuter| :Get Change; endif |Ticket vending machine| :Show Thank You; |Commuter| stop @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art