Hi, I am attempting to connect a new ceiling fan to an older house.
There was a ceiling fan here but it isnt working. The fan that I will
install has no light.

Why was the old fan not working? If it's the wiring then a new fan won't
help. Why no light on the new one?

Take a good look at the various add-on remote controls you can get for fans.
The one with a temperature sensor on it is VERY handy. This way the wall
switch can be left for controlling the light and the remote automagically
handles the fan.

As the wires are very old its hard to tell which is white and which is
red.

Color doesn't matter. It SHOULD matter but you're at the mercy of whomever
installed the wire in the first place. Yes, white should be neutral but
ALWAYS check it. Red's supposed to be hot from the wall switch. A simple
voltmeter test should tell you if a wire is live or not. Just test the wire
with the switch on and off and see how it comes out. It's not uncommon for
a ceiling box to have all three; neutral, hot and switched. But it's
likewise just as possible for it to only have neutral and switched. It
depends on where the wire went first, from the breaker to the ceiling or the
wall switch?