Well, when writing an interview in a novel, first, decide on the key points you want to convey through it. Then, focus on creating a natural flow of conversation and showing the characters' personalities through their words and body language. And don't forget to build tension or drama if it fits the story.
In the Name of Family was a novel about family love. It mainly told the story of a family meeting again after experiencing life and death, supporting each other and caring for each other. Although the book did not explicitly describe emotional scenes, readers could feel the sincere feelings between the characters through the interactions and emotional clues between them.