Security Officer No Experience

This will be my first time doing the security officer job so therefore I have no experience but I am easy to train and I can go from there. This is a job I always wanted to do be a security office but no one chooses to give me a chance all I need is a chance and I know I can do the job with no problem. Whatever I need to learn I can learn from you all and I can do the job perfectly as I will be trying to do all I need is one chance just give me 3 days and if I don't do the job correctly you can terminate me.