WASHINGTON, May 6 (Reuters) - U.S. President Donald Trump said on Wednesday that Iran wants to negotiate and make a deal, adding that the U.S. was doing very well in Iran and that it was going very smoothly."We're doing very well in Iran. It's going very smoothly, and we'll see what happens. They want to make a deal, they want to negotiate," Trump said at an event at the White House."We're dealing with people that want to make a deal very much, …