Common names are difficult because they vary a lot arround the world. For example the british Ghost Orchid is nothing like the Ghost Orchid most people here on OB know.
Here are some pics I've found online when searching for Dove Orchid.
Could it be this one, a Peristeria?
Wikipedia - Peristeria)
IOSPE PHOTOS - Peristeria
Or this one, a Dendrobium?
Daintree Valley - Dove Orchid
Or this one, which has no scientific name on the pic?
Flickr - Dove Orchid
Or this, another with no scientific name, I think it may be another Peristeria?
Flickr - Dove Orchid