Can I get Voice to Text to spell my daughter's name correctly?

Let's say my daughter's name is Danny. But she/we spell it Dani. Every time I use her name in VTT it is misspelled Danny and I have to correct it. PITA. I've tried adding the name correctly spelled to the dictionary but that doesn't help. She is in my contacts and if I say "text Dani" it works correctly. But on VTT no dice. I have LG G4 running Android 6.0 version LS991ZVI using Gboard. Yes I know it's an old phone but I love it and hate that the newer versions don't have the omnifunction button on the back. Can someone please help?