Title: Identifying formal & informal phrases

Find 3 formal phrases used in this e-mail

Dear Mr Braithwaite
I'm writing to enquire about the monitors you informed us of last month (April).
Please could you send us a brochure and price list?
We would also appreciate a visit from your rep in order to get more information about the products. Could you ask one of them to contact us, please?
Looking forward to your reply.
Yours sincerely
Euan Davis
Purchasing Assistant
A: Dear; Mr; to enquire; We would also appreciate; Yours sincerely