You aren’t doing anything wrong. There are several potential reasons for dismissed inquiries.
1. Host no longer active or taking an extended break.
2. Host restarting, and we offer them a fresh start.
3. Most often, it’s because your unanswered inquiry is 6 months old. This happens automatically to give artists a fresh start with that host, since the proposed dates are likely no longer valid, and it’s likely that the inquiry would be at the bottom of a long stack – unlikely to ever get answered.
Dismissed inquiries are part of our maintenance to make sure that hosts/venues get time-relevant messages, and so that artists are encouraged to update requests if they wish.