A: Hello, Samantha speaking.
B: Hi, Samantha. This is Angela calling.
A: Oh, hi Angela, what's up?
B: I'm just calling about our meeting today. I wonder is it possible to reschedule our appointment in the afternoon? I have a bit of an emergency that I need to take care of.
A: Let me see. It shouldn't be too much of a problem.
B: I'm really sorry. I hope it doesn't inconvenience you too much. It's just this thing came up and...
A: Angela, you know what, I can't make it to our meeting either. Why don't we postpone it to tomorrow afternoon at the same time?
B: Sounds great. See you tomorrow.
C: Angela, Angela, look up. See that lady over there who is trying on a red leather jacket? Isn't that Samantha?
B: What? No wonder she told me she couldn't make it to the meeting. Oh no, I think she saw me.
I wonder if you can help me.
I was just wondering if you could lend me your car?
I wonder how he did it?
Is it possible to...?
Is it possible to give me a raise?
Is it possible to drop me here?
The meeting has been rescheduled to next week.
Would you like me to reschedule it for another time?
I'm terribly sorry for the inconvenience.
They decided to postpone their holiday until next year.
Unfortunately, the flight will be postponed.
this thing came up
something happened/came up
I'm sorry that I'm late, this thing came up at work and I had to stay to take care of it.
Sorry I missed the meeting, something came up.