SELECT KEY ITEMS FROM NPC QUESTION

I'll try to be as clear as I can.

I want 2 key items. Wallet and a Dagger. Lets just say we start the game off with 1 of each in your inventory. (easy to do)

I want to walk up to an NPC, have them say "Which item would you like to use" (simple) and give me a list of key items in my inventory to choose from (I think this is the select key item option, but not sure why i have to pick a variable). If I click on Wallet, I want it to do 'X', if I click on dagger, I want it to do 'Y'.

I have an understanding of conditional branching, but I can't get it to work. Can anyone help? What would the NPC event look like?

Hm....I understand you in concept, but am struggling to make that happen via RPG Maker.

In the database, I changed maximum items up by 1, and added Empty Wallet. Its item 017 (is this the ID you're talking about?) I also marked it as a Key Item.

The NPC event has a simple show text "please select your wager"
Then it has "Select Key Item: (I labeled the first free variable Which Item Picked)

I then tried to do a conditional branch with Variable Which Item Picked, but I seem stuck there, as my options are to just say "if Which Item Picked is equal to .... and I can't say Equal to Wallet.

AKA, I'm still confused :*( I do appreciate your reply and any additional help you can give.