SeatCancelledEvent

booking

SeatIdGenerator

booking

SeatReservedEvent

booking

StateName

booking StateName trustaccountcreation StateName

seatId

CancelSeatCmd

seats

BookingState OpenBookingCmd

seatsBooked

CinemaNotification

shouldFail

ESigningSystem EmailSystem TrustAccountProcessingSystem

state

BookingAggregate BookingState TACAggregate TACState