<human>: Can you succinctly summarize the text in 1-3 sentences?

Happened just a few hours ago. I was diligently waiting for my flight back to manila (Philippines) from Boracay which got delayed for 2 hours or so.

Most of the flight were delayed due to airport congestion or what not in manila causing all hell to break loose.

This is where the fuck up start. There was this white american guy bout 6ft~ tall around his 30's started berating on one of the workers that is manning the information booth before the boarding gate. WAG (White american guy) started cursing and badmouthing not only the airport and officials but also us Filipinos. 
Without hesitation I stood up and asked the guy to calm the fuck down and I put myself in the middle of him and the poor lady. 

He asked who the fuck I was and gladly told him that "I'm the filipino guy that's gonna break your face if you don't apologize for being an asshole" by the way i'm a 5'6 filipino guy and this guy was huge. He started to direct the insults to me saying he'd handle my ass to a pulp if I don't mind my own business. Since i'm already way over my ass I just held my ground and prayed that 6 months of Muay Thai lessons would help me out. 

WAG suddenly started poking me with his finger and then started to push hence me delivering a quick right hook to the jaw and a knee to the face. Guy dropped like a potato with a possible broken ~~nurse~~ nose and airport security was all over my ass as well. Security was gonna throw me out of the airport and bring me to the police not until the passengers called out and told the officials what happened so they kinda closed an eye for me and WAG and eventually got home.
<bot>: White american guy started berating on poor airport girl and started being racist. Intervened by asking him to sit the fuck down. Hit him with a right hook and a knee to the face.