Maggie: hi Tom, sorry I'll be late for work today. I've overslept:(
Tom: Hi Maggie. Thanks for the message. OK, don't worry. What time do you think you'll arrive?
Maggie: about 9.30
Maggie: I hope
Tom: thats ok
Tom: I hope you'll be in time for our team meeting. 
Maggie: yep
Tom: Ok, take care and see you!
Maggie has overslept, so she'll be late for work. She'll arrive at about 9:30 and Tom hopes she'll make it for the team meeting.