I am going through lesson 6.4 and noticed that Kenny's second line is different in the audio from what is displayed on the page.
The page shows:
あした の こと を かくにん したかった だけ です から。
However, the audio has him saying したい instead of したかった. I was waiting for them to explain this but the host then moves on to the next part of the conversation. I'm assuming したかった is past tense because he's referring to the previous phone call? That makes more sense to me than using したい but are both forms valid here?