I am the person that will be helping you today.
How may I help you today?
I will be standing by.
No what? I asked what the problem is. What is your problem?
Which version of Adobe are you using?
After you copy the page to the destination file, you should save it before you attempt to delete a page. Please, try that. Is there any change?
Okay, that is the fix. Do you wish to contact me later to let me know if that resolved the problem or not?
Thank you for your time so far.