[yorkiemini]

Brister is totally correct. And the link she posted a very very good.
Only correction is that some airlines do not interpret the ADA laws to make emotional support dogs eligible for plane travel. It has been legally tested I. several incidents. I think in the future it may get more hopeful but as of now there are some problems with the interpretation.

In your favor, the airlines seem to be more open the small emotional support dogs than the larger ones - go figure, but that seems to be how the legal cases are coming out. They want you to be able to present a specific task that the dog performs for you - they don't consider cuddling and being present a specific task.

Also, even a well behaved service dog can be banned from a private place such as a church if they do not want them. Some places don't consider them public. Private run tours, boats etc can also be considered not to be public.

It is a little sticky. If your professional who writes your paper work for you is specific and writes well that can make a world of difference. That letter can solve a lot the problems you may run into.

With a help of a trainer (if you have not had much experience with training) you can teach most dogs to,perform a task that could be considered appropriate for your designation. Remember, you only have to be able to tell and at the most demonstrate the task your dog does for you - they cannot ask you what your disability is. In my case it is pretty blatant but in many it is not.

Just figure out what are the main thing you need help with and have a trainer work with you and your dog on those specific things.

Basic obedience will be required for your dog to behave in an acceptable manner - that is always expected and that is the area where most folks who train their own dogs miss.

Let me know if you need any help interpreting the ADA laws.

Airlines have gotten pickier because so many who do not have trained service dogs are trying to do their dogs on the plane for free - sort of ruins it for the others.