Currently we sometimes have several numbers for one appointment, as there might be multiple tenants/people with which to schedule. Sometimes one party will hit "1," while another will hit "3." It would be helpful if the appointment all went "green" and confirmed and a follow-up text along the lines of, "Thank you for confirming this appointment" was sent to all numbers when one party confirmed. This way everyone on the thread would know that someone did indeed confirm the appointment, which could avoid mixed signals.