May I Help You?
A. offering service or help
* May I Help You?
* What can I do for you
*Is  there anythingI can't do to help
* Would you like me to have you
B. setting server to help
* Yes please thank you a lot
* Yes please if it's not too much trouble
* Thanks That's Very kind of you
* Thanks you very much. I appreciate that.
C.  Services
* No, Thanks. Im oke.
* No, Thanks. I Think I Van manage
* Thanks you very much, but I Van do It my self
* No, Thanks it's all right.