regarding activation of pass and select trip

Hello Team,

I have eurail global pass.

Thanks in advance.

1) Can you please tell me Geneve station and Geneve airport station, as I will be coming by plane which station is nearest to me, 

2) please find below the route I will be taking, should I reserve for only Geneve Aeroport to Luzerne , then getting down at station I book Luzerne to dallenwile, or should I save whole journey,

if that happens I save whole journey and I miss the train from Luzerne to dallenwile, what will I have to do