The US president amidst his hectic Vietnam visit on Monday night took time out to sample street side dish with Anthony Bourdain, a chef and food critic who hosts a travel show about hidden culinary gems around the world. He said the dinner with the President costed just about $6 and that he has paid the bill for the dinner. Meanwhile, the hotel owner says,"His presence in our restaurant was a great surprise for my whole family, who could never have imagined it, even in our dreams."