Is it possible to create a Pokemon gives script that is also a yes/no?
Yep, it's possible.
Here's an example.
if 0x1 goto @done
message @1 5
compare lastresult 0x1 //checks if player chose 'yes'
if 0x1 goto @yes //goto @yes if player did chose 'yes'
if 0x0 goto @no //goto @no if player didn't chose 'yes'
Hey I've seen that you haven't been posting lately and I just wanted to check up on you. Now that the Mechanists are back in the enclave Dexter can now go about his business if you wish. Anyways if anything is going on in real life then just let SB or I.