If you are at the part where you are going to the convention with him, use the words "money" and "cards" for the extra items to take with you.
Viewing post in Extracurricular Activities comments
About a month ago someone had a similar issue. Here is what they posted and thier solution:
"Hey, i dont know if this a Bug or not, but on Chester day 11, when you need to type "no" to continue, it always become "" every time i type it, how do i overcome this? Im playing android ver
(Edit : oh no my bad, looks like you need a different keyboard for this, google keyboard didnt compatible with the game, and when i download another keyboard app, it worked just fine, sorry for the incovenience) "