diff --git a/scripts/ping.coffee b/scripts/ping.coffee
index 39c7188..2b87ae8 100644
--- a/scripts/ping.coffee
+++ b/scripts/ping.coffee
@@ -24,3 +24,8 @@ module.exports = (robot) ->
     msg.send "Goodbye, cruel world."
     process.exit 0
 
+  robot.respond /THANK YOU$/i, (msg) ->
+    msg.send "You're welcome."
+
+  robot.respond /ありがと(?:.*)/i, (msg) ->
+    msg.send "どういたしまして〜"