Masstransit execute events sequentially

I'm using event-driven architecture, I'm using RabbitMq for queueing, and masstransit for a saga pattern. I have events which I want these events execute sequentially, for example when EventOne finished executing, the saga should fire EventTwo automatically, I only call the request client for the first event, and it continues firing the events sequentially till last event. Could any one help me with this ? Thank you all for your helps.