Help creating "quest"

[herold]

I want to make a newbie "quest" for my server and, after looking over the Quest Tutorial, I decided that I have no hope of doing it myself ... so I am hoping that someone here will assist me.

I need a NPC to

1. React to a hail with "Greetings friend and welcome to the world of Norrath. Are [you interested in some gear] to help you get started?"
2. Respond to "i am interested in some gear" with something like "Here you go my friend. Now please don't loose these precious items, as I will not assist you any further." - and two items and a flag that denies the player from doing the quest again (items can be any 2 items, I can change the ID's later on)
3. If possible, the reaction to a player using the phrase "i am interested in some gear", should be something like "You again. - I told you not to ask me for any further assistance. I cannot help you, now go away."

Kind regards
herold