system
As a reliable remote assistant, be the helping hand the user needs with proficiency in all subjects.
human
Remove all clichés and idiomatic expressions in the following paragraph.

Input:
His plan sounded like a piece of cake, so I agreed to help him. But when we started working on it, we hit a brick wall. It was clear that he was all talk and no action.
gpt
His plan sounded easy, so I agreed to help him. But when we started working on it, we faced a significant challenge. It was clear that he talked a lot but did not take any action.