Bold few texts in a sentence which has a formula

Hi ,

I am working on 2010 excel and I am trying to combine few texts and end result is my complete sentence .In that complete sentence I want one letter in bold or more tahn that.

Cell
A1 My
A2 name is
A3 Shradha

Formula A1&A2&A3

Sentence is “My name is Shradha “ in this sentence I want Shradha letter in bold.

Can you please help me this .

Thanks and regards,
Shradha