Mandy: Hi :)
Mandy: When will you come to me?
Alex: I have to change the tire first. 
Alex: I've got a puncture :(
Mandy: It's a pity ... I thought that we would see the exhibition today.
Alex: I'm sorry. I can not do anything with that.
Mandy: Ok, maybe tomorrow…
Alex needs to repair a flat tire before he meets with Mandy.