I'm posting this question as a guest to someone else's wedding. We received an invitation to a friends wedding and RSVP'd before the deadline that we would be in attendance. Three weeks before the wedding we received an apologetic mass email saying they had reached capacity for their reception but we were welcome to attend the ceremony and another get together that they are planning to have some time after the wedding. We already purchased non refundable plane tickets and booked a hotel room and rental car. We're trying to figure out how to properly respond to the email we received. We're pretty taken aback that the couple would even send such a message. We don't want to travel such a great distance to only attend the wedding ceremony, get kicked out before the reception, then go to some after party (that would be at our expense), but we already purchased the tickets. Is there a proper response to a situation like this?