Cliché = A figure of Speech that has lost its sparkle. 
 
Sometime, the sentences you wrote look like to be polite; but, it is awkard, such as as per the above. These are cliché or empty words that are overused and make our writing cumbersome to read. 
 
For example: 
Before:  
Please be advised that at the present time we have no available job openings. Thank you for your cooperation in this matter. 
 
After: 
Currently we have no job openings, but we want to thank you for your interest in our company. 
 
Please let me know if you want more cliché examples. |