Many thanks for your prompt reply informing me that the book is now set aside for the library. It's great that you are willing and able to send an invoice with the book -- it makes life a little easier when you work for a very large institution! Thanks again.
Dear Argosy, Thank you for your prompt and efficient attention to my order. It has arrived safely and I am very pleased with it. It was particularly good of you to take the trouble (and expense!) to send it priority mail.