To "sell" the speaker, you need to create a description of this person, write about their history, and why they are ideal for commenting on this topic. Perhaps highlight a few interesting conclusions this person has made on the topic you want to cover.
"Once I wrote an article about a man who was a daycare educator, and I referred to him as a teacher. He wrote to me and asked me to correct it to 'educator'. I did it, but this is not the time to spend my time on such edits,"
His colleagues support this recommendation.
It is important to remember that journalists are not magical princesses in inaccessible towers. They too constantly need interesting topics and heroes. They are searching for you just as you are searching for them, especially considering how in-demand Ukrainian topics are in the world today!