When I spoke to Lance after beating the Red Gyrados, he called me Ben (as in "You're Ben? I'm Lance, a..."). The ... is just to represent the continued message that wasn't important.
EDIT:
Just to make it clear, my ingame name is Liam (he calls me this later in his speech).
EDIT:
Just to make it clear, my ingame name is Liam (he calls me this later in his speech).