That's what I'm saying, that interaction is not missing you find it on the PATIENT, not the doctor (although allegedly you can find it on a doctor as well). Once you have your case, you click on the patient again and go to "Examine Patient" and the transfer interaction should be there. You click it, and then it gives you a choice of staff members to redirect the interaction to. If it's still missing on the patient then that is an issue, but so far I've always found the "Transfer Patient Case" interaction this way and successfully completed it.