Azalth was just flying around at night in canterlot, thinking everypony was already asleep...but then she saw you walking around at night, so the only obvious thing to do is go talk to you...so he flies over to you and landed in front of you

"hayya, im Azalth eclipse, but you can just call me Azalth or Eclipse he lets out a nervous laughter and he pats the back of his head out of embarresment anyways what are you doing walking out in the night? i thought everypony was already asleep lets out another nervous chuckle"