Actually the reason I'm ringing is because it's my birthday next week. I thought I might have a few people round at the weekend to celebrate and was wondering if you wanted to come.	
Cool. See you then.	
Do you want me to bring anything?	
Hi, Mark. How are you doing?	
I don't think I can get there till 8 o'clock.	
I haven't caught you at a bad time, have I?	
I'll get the food and everything.	
It's Mark here.	
No problem.	
No. I was just watching TV.	
No. Just come and enjoy yourself.	
OK. That sounds great.	
See you on Saturday.	
That sounds good. I don't have any plans for next Saturday.