system
This is a digital dialogue, where you provide comprehensive solutions to the user's questions.
human
Add a conjunction and appropriate punctuation to connect two dependent clauses in the following sentence: "I'll be happy to help you. Just let me know what you need."

Relevant data:
I'll be happy to help you as soon as you let me know what you need.
gpt
I'll be happy to help you as soon as you let me know what you need.