This scammer has no idea what your surname is. ┬áHe or she is just hoping you will contact them – and then they will start asking you to send them money.
How are you today? I am Mrs Isabella, I am regional manager here in
Dakar, Senegal. I am writing this letter to you because of your
surname. I have been in search of someone with your last name, so when
I saw your name I decided to contact you for this opportunity and hope
we can work together.

Get back to me ASAP