HAHAHA HILARIOUS!
I understood only this:
*tooot* *tooot*
Ayu: Hello?
Max: Where are you now?
Ayu: Now... I'm... in Osaka.
Max: Are you gonna perform in Osaka?
Ayu: yeah... yeah...
Max: (he said something but took it back)
Ayu: Boss, I'm gonna eat lunch now
Max: Where are you gonna go to eat lunch? ah there, were Ayu is
Ayu: huh... huh...
Max: mmm... now.. there someone here
Ayu: yeah, I can hear a laugh
Max: ah, yeah, Yousuke, dozo!
Yousuke: aah so... today... now, the person we called
Max: (interrupting in between, but Yousuke didn't hear) Ayu
Yosuke: so who is this person?
Max: Ayu!
Yosuke: WAAAAAAHAHAHAHAHAHAHAH (like he cannot believe it!)
Ayu: ahhh I don't sound like Ayu, with this voice
Yousuke: but but.... what happened?
(And then, Ayu says something I really cannot understand, because they started to speak really fast, LMAO!)
Yousuke: aahh, I see... But really, I cannot believe it that it's you!
Ayu: But REALLY, this is Ayu!
Yosuke: Yeah, it's Ayu there.
(Max laughing in the back)
(Then Yosuke said something I didn't understand)
Ayu: I can hear the laughs!
Yousuke: I understand you have to go to lunch, so please hurry kudasai!
Ayu: yeaaah!
Yousuke: yes, putting on effort on it... is so cute!
Ayu: hehehe
Yousuke: but this is incredible!
(then Yousuke say something I really don't understand)
(and then, they laugh of Ayu, answering with "roarrr, roaar! don't bother me!")
and finally they say "Ja neeee, bye byeeee"
Well.. I don't know if I got it completely, but is kinda like that
