Task: I'll be in Cairo next week. Look for a one-way flight from Dubai to Cairo in economy class on November 10 on the Booking.com app.
Steps:
Open the Booking.com app
Go to the Flight section
Click on the One-way 
Click on the departure search bar
Close the DEL
Search for Dubai
Select the second-searched result.
Click on the Done button
Click on the Destination search bar
Search for Cairo
Select the first searched result
Click on the Done button
Click on Date
Select 10 November
Click on the Done button
Click on 1 adult, Economy section
Click on the Done button
Click on the search button
Click on the search button