Picture taken using the flash in Program Auto mode	Picture taken with [SCENE] (Night + Portrait): The shutter speed is a bit too slow resulting in camera blur	Picture taken with [SCENE] (Night + Portrait). A cross filter was used

Useful things to remember

To shoot night scenery, the shutter must remain open after the flash has gone off. Be sure to tell the subject in advance not to move until the shutter closes. Open "Useful Tips: How slow synchronization works"
With slow synchronization photography, images are more likely to show blurring since the shutter speed is slower. Stabilize the camera by using a tripod or other similar equipment.
If there is a long distance between the camera and the subject, the light of the flash may not reach the subject. Have the subject stand closer to the camera.
It may be harder to focus if the subject is in a completely dark location. If it is hard to focus, have the subject stand in a brighter location.
To further enhance night scenes, try using a cross filter or a similar filter. Although it may not be possible to attach filters to some cameras, filters can be just as effective if you hold them in front of the lens with your hand.