Mine went to my email address but in my ex's name. I was able to book it. Depends on the CM and the names I would guess. If you had the same last name, it would probably more likely to make it.
You could possibly book it with the other person's name and then call later and change the traveler's (such and such had to cancel).
Just remember if one CM doesn't let you, another might, so you might want to try a couple of times.