I'm absolutely gutted, but I'm not going to be able to make it.
Bloody train strikes, why today?
I'm really sorry, I hope there'll be other meetups.
Oh no, sorry to hear! Well, I am sure there will be - it was one of the things I was going to raise this evening.

Starbucks for 3:30?
Aye, that is right - look out for the bright yellow car with a grey frame around it in the car park - that is me.