person A: Walking to a restaurant the other day and I forgot to hold the door open for an old lady_comma_ felt so bad about it because she was right next to the door too.
person B: It was nice of you to at least think of it. I'm sure she wasn't that upset.
person A: I hope so_comma_ i usually hold it open for everybody but i was distracted and didn't see her.
person B: It's totally understandable. Life can get really busy sometimes!