Shop Assistants Myspace

What does this mean if someone says it to me?
Someone on myspace wants to me go to London to met them and go shopping when im a little older, i said no be/cos i only know him over he internet but he said he will be my “Personal assistant”
and then he put “:D” after it..
I told my mom and she demanded that i deleted my account on myspace. :/
Any help
thank you x
I do know him, he is my best friends cousin, how i have met once or twice :/
If your under the age of 18 tell the guy to explain himself so that you can confer with your mother, as to what this clown wants.
Shop assistant war.