Please choose air china for the product. And I want the ads to be about the services and safety of air china. Especially during this critical time period( corona virus), lots of people wants to go back to their own country but they can’t book their flight because is all full. So the main point is air china services and safety for people to travel. And the copywriters i choose is David ogilvy and Leo Burnett. Please follow their style of ads. And includes headline, subhead, body copy, tag line. Thank you. .