Gina Mastantuono, President and Chief Financial Officer of ServiceNow.Leigh Vogel/Getty Images for Fortune MediaServiceNow aims to double subscription revenue to $30 billion by 2030.ServiceNow's Now Assist product surpassed $750 million in annual contract value, its CFO said.ServiceNow CFO Gina Mastantuono reassures investors on AI and forecasts robust profit margins.ServiceNow made a more forceful case to …

