Liz knew that this probably wasn't going to work but she desperately wanted to talk to Prompto and this might be the only way she was going to be able to do that and she thought on the off chance it did go through that it would be better if he heard her voice rather than if she left a text message.

“Um…I don’t know if you’re even going to receive this but I … I had to try and talk to to you, I’m so sorry …I wish I could be there in person to explain to you, to apologise … I … I can’t … I didn’t mean …I love you and I …” her voice trailed off, “I miss you so so much …I love you…” she said again and let out a sob and that was when she hung up.

Sorry Prompto this message was going to make no sense when you eventually got it.