Travel delays are quite profound for people who are blind, especially when there isn't someone available to take us to a new gate where the new aircraft may be leaving from.
Other times, when the delay is longer, we have to take our dog out again. We always have to go back in some airports still through security. If your flight is to the U.S., you then have to reclear customs again.
There are considerable barriers in certain circumstances. While some airports now have dog relief areas in them that mitigate against some of these problems, not all do. That is something that should be taken into account for dealing with people with travel delays, that we have access to all the services that we need during the delay.