How does one respectfully sign off semi-formal (e.g. business) emails without going for the full blown “Veuillez agréer, Madame, Monsieur, l'expression de mes sentiments distingués.” etc.?
I'm trying to write a short email in which I'm turning down a contract. (I'm a musician.) The text of the email would be something like this J'aimerais beaucoup faire le gig, mais, ...