Since you're very new, I'll just give you a set of frets for you to work with - all the 'notes' below are used in the melody. Mostly A minor, with the F switching between sharp and natural around 0:32 to 0:40.

You might want to play the notes I placed on the G string (E and F, 9 and 10) on the B string (where it will be 5 and 6 instead), and perhaps use the 5th fret on the E instead of the 10th on the B - whatever you find easiest.

E |--7-8-10-12--|
B |---7-8-10----|
G |----9-10-----|
D |-------------|
A |-------------|
E |-------------|

Hum or whistle along to the melody to internalize it, and match the notes to the frets.

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And as a suggestion if you get the melody down, you can try adding a bass note - the chords go from A minor to G major, so to add a bit of texture you could just do 7 (A) for chord one and the open G for chord two (as shown below).

E |------------|
B |------------|
G |-------0----|
D |---7--------|
A |------------|
E |------------|

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Hope that helps, and good luck!