The reference

Thank you for your offer of 1 November 2002.

With reference to your enquiry ...

Further to our telephone conversation earlier today, ...

The reason

I am writing to enquire about ...

I would like to inform you that ...

I am writing to recommend that you ...

I am writing to remind you ...

Good news

I am delighted to tell you that ...

I am pleased to inform you that ...

You will be glad to hear that ...

Bad news

I regret to inform you that ...

Unfortunately ...

I am afraid ...

Requests

We would be grateful if you could ...

Could you possibly ...

I would appreciate if you could ...

Please ...

Offering help

We would be happy to ...

Would you like me to ...?

We could certainly ...

Enclosing / Attaching documents

I am enclosing / attaching ...

Please find enclosed / attached ...

Closing

Thank you for your help.

Please contact us again if we can help in any way.

Please do not hesitate to contact us if you have any further questions.

I look forward to hearing from you.

I look forward to doing business with your company.

I look forward to receiving your offer in the near future.