<human>: Last night around 11pm, I was sleeping when my sister practically kicks down my door telling me my dog got out of the house. He is an older dog so I didn't think he could have gotten far seeing as he had to have gotten out around 9:30pm when my dad got home. I was walking  around the neighborhood calling his name until I passed by this man who was sitting on the sidewalk of a 5 lane street near my house. When I asked him if he saw my dog, he said no and I gave him my number just in case he does. About 30 minutes of jogging around my neighborhood my phone rings. It's the gentleman from before telling me that he just saw my dog CROSS THAT 5 LANE STREET and enter a smaller one. I have never ran so fast in my life. I crossed that giant street and chased my dog down an alley. After calling my parents to come get us, I realized that I had been running for 30 minutes straight and sprinted a distance of about 1100ft in a minute. I weighed in this morning at 50lbs less than what I weighed in May. And I know that if I didn't lose the weight there was no way I would have caught up to my dog and I might have even lost my best friend for good. The real hero is that kind man who called me, but hey it feels amazing to see some real world results to your efforts.

Can you summarize the given text in a few sentences?
<bot>: I searched for my dog after he got out for an hour and half and I only caught up to him because I've lost 50lbs. :)