Oktober Fest tickets (Munich)

Hi everybody!. I have two ticketsf Protected content and 40€) for me and my friend Patricia for thursday september 23. My problem is that at the moment we are sick!!! We have a strong cold and I am afraid we can not assist to the party. I would like to sell them as soon as possible and my question is how can we do to solve the problem. Please send me an Answer to this question. Mercedes