1. Sorry I can't make it. I can't be able to attend

2. I need to get this report for tomorrow.

it is necessery for me to receive this report for tomorrow.

3. Shall I book the hotel room?

Would you like me to reserve the hotel room?

4. Don't forget to pay your invoice.

Please remember to pay your invoice.

5. I'm sorry for the delay.

I apologise for the delay/ please accept my apologise for the delay.

6. I want to get some more info about your company.

Please send me any further information about your company.

7. I'll check it.

I will verify it.

8. Tell me what you need.

Please tell me your requirements.

9. The flight was delayed because of bad weather.

The fly was delayed due to the bad weather.

10. You haven't placed an order. 

You have not placed an order.

11. I've attached the report

Please find attached the report.

12. If there is anything else just let me know

If you need any further information please let me know./ If you need any further information please do not hesitate to contact me.

13. Looking forward to your reply
I look forward to your reply.

Dear Mr Paterson

I am writing to (1) ask about your range of less exclusive products. 

Our company has diversified recently and now we (2) need products for the hobby golfer. (3)Can you send me more inormation about such products and a quotation?

(4) Looking forward to hearing from you