Translation of geeky in Spanish

The connecting flight to Phuket was fully booked, and the connection to Krabi had five empty seats. The problem was that the boarding began in ten minutes and I did not even have a ticket.
I'm quite tired too by now. So, if it doesn't work just drop me an email and I'll see it first thing in the morning. I wanted to add new words to the dictionary however the other issues kept me more busy than I have imagined.
I think it is better to send an e-mail. Unfortunately, I have not received any response from you. I have answered your last letter a month ago. I would like to correct your mistakes.