英语翻译John Smith had wanted to be a pilot since he was a child

英语翻译
John Smith had wanted to be a pilot since he was a child ,so when he won the lottery and had a lot of money ,he decided to buy his own plane .
Then he took flying lessons .Unfortunately ,he wasn’t a very good student .But at last he passed his pilot’s examination ,and had his certificate.He was allowed to fly the plane without an instructor .
For a while he was happy taking the plane on his own .But he soon felt lonely in the plane ,so he decided to ask friends to come with him.
But his friends refused .They had all seen how he drove his car .He was not the safest driver on the road.
At last ,having no one else to ask ,he invited his dentist to join him on a short flight .The dentist,who did not know John well and had never been in a plane before ,accepted his invitation.
John wanted to show his dentist what a good pilot he was.After the plane took off ,Jhon put the plane into a steep dive.He turned it on its back .He rolled it over and over .He did all kinds of things with the plane.
Throughout the flight,the dentist just kept saying to himself,“What am I doing here I must be crazy.”
Finally ,John landed the plane safely ,though very roughly.
The dentist got out and looked up at him.
“Thanks for both flights ,” he said to John.
“Both flights?” John said ,surprised .“But you’ve only had one flight .”
“Oh,no ,” his dentist said.“I’ve had two:my first and my last .”