求一段英文对话：两个朋友想一起吃饭,但是因为其他诗情而不能确定时间

1：hello could i speak to justin please
2:speaking
1:oh,hi justin,this is karen,we met at chris's part
2: of course ,howre you
1: great ,uh ,justin ,would you like go out to eat with me
2:i'm sorry ,karen ,but i can't ,i have to work late this thursday
1:oh that's too bad
2:yeah.i really like to
1:actually are you doing anything on friday or saturday?it's ok at that time
2:well i can't make it on friday either,but i'am free on saturday nght ?is that ok ?and can you nail down to a specific time.
1:sorry ,i can't make it at this moment ,i will inform you as soon as i fix the time
2:where shall we meet
1:how about meeting in front of the club
2:that souds perfect .
1:sure
2:ok see you

2 guys want to have a dinner together,but whey can't make sure the time cause of sth else