All plans should have a most important part. So the PCs know which bit to mess up.

Transcript

{establishing shot of Cloud City}
Leia: So here's the plan. Are you ready?
Han: Oh boy!
Leia: You find out from Lando where the Dagger Bar is.
Han: Cool, cool, cool.
Leia: Then we go there - and this is the important part - straight away.
{beat}
Han: Wow. It's like you read my mind!
Leia: Really??