I’ve just had two conversations

I’ve just had two conversations by telephone. One was with someone to whom I am offering the opportunity to sell their goods to five thousand well-heeled Sussex folk in exchange for a very reasonable fee, in a smart marquee in a beautiful setting. To the other, I was offering the opportunity to stand outside for a weekend, giving up his free time, for which he would gain no financial reward at all. Same setting, but not in the smart marquee.
One conversation was extremely satisfactory, and left me smiling. The other was not and did not. Guesses for which was which?