This means that, for example, if you determine that an individual who has allergies or asthma cannot be in contact with a pet, you will call the carrier to tell them that on that given date, that given day, that person will be on that given flight and ask them to ensure that there will be no pets on board? Is this what you do when you determine that it is problematic for someone to travel when there are pets on board?
On November 4th, 2009. See this statement in context.