Task: I want to look for a flight from Detroit to Las Vegas in business class for 4 passengers on Expedia departing October 11, 2023 and returning October 16, 2023 because I'm organising a family vacation to Las Vegas.
Steps:
Open Expedia app
Go to the Flights section
Click on the Departing city section
Search for Detroit city
Click on the first search result
search for Las Vegas city
Click on the first search result
Select the departure date October 11, 2023
Select the Returning date October 16, 2023
Click on the Done button
Click on the Date section
Go back to the previous page
Click on the Traveler section
Add 1 more adult traveler 
Add 2 Children traveler
Add 2 Children traveler
Click on the Done button
Click on the Preferred class section
Select the Business class
Click on the Done option
Click on the search button