person A: I forgot about my grandmother's birthday a couple years back. I felt so bad about it!
person B: Oh no! It happens to the best of us :) Have you talked to her about it when you remembered?
person A: Absolutely! I called her the next day and made sure to visit her. :)
person B: Awww I'm sure she completely understood and really appreciated you reaching out and going to visit her!
person A: She did. :) It ended up being a good visit anyway!