The following editing technique is used in the opening scene of Friends with Benefits for example:
[Scene 1: two guys A & C are talking]
A: What is your name?
[Scene suddenly cuts to scene 2: two guys B & D are talking]
B: My name is B
[Scene suddenly cuts to scene 1]
A: where do you live?
[scene suddenly cuts to scene 2]
B: I live in France
Actually A is talking to C and B is talking to D, but the director/editor make us feel as if A is communicating with B.
What is this editing technique called?