Straight to the point.
Was Yoda expecting Luke on Dagobah? Did Ben (Obi-Wan) Kenobi work with Yoda to get Luke to Dagobah? Or did Ben simply assume that Luke would show up and Yoda would know how to take it from there?
Longer explanation with my bad attempt at Yoda-speak below.
Pay attention you will! Something noticed in The Empire Strikes Back I have! Say to Luke Skywalker on Hoth did Ben:
You will go to the Dagobah system. […] There you will learn from Yoda, the Jedi Master who instructed me.
Show up on Dagobah Luke does. Bumped into Luke during nice quiet walk Yoda has… But expecting Luke on Dagobah Yoda was? Unexpected maybe he is? How involved in getting Luke to Dagobah Yoda was? Ahead of time Yoda knew?
Luke Expected: Tell Yoda Luke was coming, did Ben? To get Luke, a big plan Yoda and Ben did make? Who Yoda is, a true surprise to Luke it was? For Luke, special rootleaf I cook?
Luke Unexpected: Tell Luke about Yoda, Ben did, but tell Yoda he did not; show up unexpectedly Luke did? Assume Yoda knew what to do, did Ben? A big surprise to Yoda, this was?
Something Else: ???