ATLANTA — Back in the day, it was common for people to write down their phone numbers on napkins or a scrap piece of paper to give to someone. Now that most, even children, have a smart device at their finger tips, those times have long gone. 

But according to the Atlanta Business Chronicle, Delta Air Lines and Coca-Cola are apologizing after receiving criticism on social media of new napkins that had flirtatious messages on them, encouraging passengers exchange numbers.

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The Diet Coke-branded napkins were handed out on Delta fights with different messages.

One reads, "Be a little old school. Write down your number and give it to your plane crush. You never know...".

Another messages says, "Because, you're on a plane full of interesting people and hey... you never know."

Some passengers did not like them. 

Both companies have since apologized and the napkins have been taken out of rotation.

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Coca-Cola Co. issued a statement saying, "We sincerely apologize to anyone we may have offended. We worked with our partners at Delta to begin removing the napkins last month and are replacing them with other designs."

Delta said, "We rotate Coke products regularly as part of our brand partnership, but missed the mark with this one. We are sorry for that and began removing the napkins from our aircraft in January.”

Although there was backlash, some people did actually like them.

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