If you booked before than 2 to 3 months, then it was a placeholder appointment and may get cancelled.
Unlike now, these slots opened far in to the future like 1.5 years from today will not be placeholder appointments and applicants can use those appointments that are even after 1.5 years.That will help consulates assess the demand and plan accordingly. To know the exact demand and backlog, they plan to open up US Visa appointments well into the future like 1.5 years (one and half years) from today.He said that currently they are not aware of the actual backlog as they don’t know the exact demand with the current setup of the appointments booking.
Understand demand – Appointments up to 1.5 years from today :.