I'm not familiar with the Arduino MKR1300 LoRa board but i'd be surprised if there were not some examples to get you going either on the official Arduino web site or on the web in general.
I just googled "mkr wan 1300 lora example" and got plenty of hits. This link looks promising. It'll take you to an article titled: Arduino MKR 1300 Tutorial: Communication Between Two Arduinos.
Thanks, markd833 I really appreciate it! I don't know why I didn't google it even before searching youtube and Arduino projects. I will try it out and thanks again!