Each vehicle is different. Service intervals are normally shown in the owner's manual. In your case, the intervals will be displayed in the dash when they are due.

Service information is located in your owner's manual. If you have lost it, here is the link for your year model owner's manual. http://ws.skoda-auto.com/ownersmanualservice/data/en/fabia_54/11-2012/manual/fabia/a05_fabia_ownersmanual.pdf

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Resetting Service Interval Display

It is only possible to reset the Service Interval Display, if a service message or at
least a pre-warning is shown in the instrument cluster display.
We recommend that this reset is completed by a ŠKODA specialist garage.

However, it is possible to reset yourself

Here is a video of the process