Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: A Scottish airline has warned that a change to "double summertime" would affect its timetables for Orkney and the Western isles.

Loganair in warning over 'double summertime'