The consolidation plans have sent couples scrambling for alternative wedding sites. Sheppard says it’s almost impossible to find another Boston church at this point that’s not booked every summer weekend; she can’t change the date because her family already has plane tickets. “I always saw myself getting married in a church,” she says. “That would have special meaning for me. Getting married in a reception hall wouldn’t.” And it wouldn’t be fine with the archdiocese: it OK’s church weddings only. Spokesman Christopher Coyne says priests and couples will get help finding churches. “Catholics get married by a priest in a Catholic church,” he says. “That’s the way it works.”