The problem your referring to , in which people keep telling him that they will give him information tomorrow, or later etc. Is actually the correct way of trying to help someone with amnesia. You simply can't rush someone into trying to remember something, it just doesn't work like that, because for a start it will usually mean nothing to him or her, and would make no sense to them because they have no frame of reference to remember by in the first place. By going slowly and patiently and at the person's own pace, things start to come back to them..overdo by giving to much information too soon, can actually do a lot more damage than people realize. some may never get their memories back, and often a person who has had amnesia actually tend to behave a lot differently than they originally did.
K7 got this spot on.