There are fourteen errors in the use of punctuation marks in the following text. Rewrite the correcting errors:

Tourist : How old is the edifice guide 

Guide : Madame its a 15th century edifice 

Tourist : What a wonderful edifice it is 

Guide : It was built by Akbar the then emperor of India. 

Tourist : Oh! I see

 Guide : Madame we should move now. The sun is about to set. It would be dark soon. 

Tourist : Isn't the place safe? 

Guide : It is. But the security does not allow anybody after sunset.