G: Thanks for everything. What a nice party!

H: Thank you. I'm so glad you could make it.

G: Say hello to your friends for me.

H: Likewise. Take care! See you later!

G: Thanks. Bye!

I'm so glad you could make it含义为“很高兴你能来”，likewise本意是“同样的”，用在此可以解释为“请也代我向你的朋友问好”。