Arg as code in a function

So I am trying to make a Yes/No menu function, and I am trying to get it so one or more of the args in the function call allows a different line of code, so for example:

function YesNo(a,B)/>
    print("Do you want to continue?")
    print("Y/N:")
    write(" ")
    local answer = read()
    if answer == "Yes" then
	    print("Ok. Continuing.")
	    (Somehow put arg one here)
    elseif answer == "No" then
	    ("Ok, Canceling.")
	    (Somehow arg two here)
    end
end
print("Delete system32?")
YesNo(fs.delete("system32"), os.reboot())

Main reason is so I can reuse the same YesNo function with different results based on the context of the situation

You could handle it like this, by bundling up your function pointers and parameters into tables, and then passing those in:

function YesNo(a, b)
    print("Do you want to continue?")
    print("Y/N:")
    write(" ")
    local answer = read()
    if answer == "Yes" then
            print("Ok. Continuing.")
            a[1](unpack(a, 2))
    elseif answer == "No" then
            ("Ok, Canceling.")
            b[1](unpack(b, 2))
    end
end
print("Delete system32?")
YesNo({fs.delete, "system32"}, {os.reboot})

But to my mind, it'd be a lot easier and neater to have your YesNo function simply return a bool:

function YesNo(msg)
    if msg then print(msg) end
    print("Do you want to continue?")
    print("Y/N:")
    write(" ")
    local answer = read()
    if answer == "Yes" then
            print("Ok. Continuing.")
            return true
    elseif answer == "No" then
            ("Ok, Canceling.")
            return false
    end
end

if YesNo("Delete system32?") then fs.delete(system32) else os.reboot() end

Use functions as arguments:

function YesNo(a,B)/>/>
    print("Do you want to continue?")
    print("Y/N:")
    write(" ")
    local answer = read()
    if answer == "Yes" then
		    print("Ok. Continuing.")
            a() -- here is the argument function getting executed. you can add arguments in here as well.
    elseif answer == "No" then
		    ("Ok, Canceling.")
		    B() -- same thing with the a arg function.
    end
end
print("Delete system32?")

function deleteSys()
    fs.delete("system32")
end

YesNo(deleteSys, os.reboot)

--[[ You will have to remove the parenthesis.
The function gets executed in the "YesNo" function. this means the args get inserted there as well ]]

This should work.