Make a quest for teleport , like this:
Or, just add the teleportation part (choose == 1 then) into your arena quest.
First of all .. sorry for my bad english, i know, i have to practice on it.
quest teleport begin
state start begin
when your_npcID.chat."Let's go into arena" begin
say_title("Arena Manager: ")
say("")
say("Hi ! I can teleport you into arena !")
say("Do you want that ? ")
say("")
local choose = select("Yes, teleport me!" , "No, i stay here.")
if choose == 2 then
say_title("Arena Manager:")
say("")
say("Ok , see you later")
return
elseif choose == 1 then
say_title("Arena Manager: ")
say("")
say("Ok , prepare yourself !")
pc.warp( x , y ) // There you need to put arena's X Y
end
end
end
end