Weekend Ticket to AMSTERDAM from Gatwick -

I have got this ticket that I booked ages ago to Amsterdam but I cannot go anymore:( It departs from Gatwick at 14:25pm on Friday the 30th March, and returns to Gatwick departing on Monday the 2nd April from Amsterdam at 10:55am. I have paid £180 for this ticket, and I cant go. So i will accept £90 and you can be responsible for the name change. We can meet at a coffee shop, and do passport and name change as well as payment together. Thanks