Example:
1. I'm ready. See you later, Marilyn.
I was ready for this. Goodbye, Marilyn.
Linda: Goodbye, George.
Linda: Goodbye, George.
An informal way to say goodbye, especially if you hope to see that person again soon, you can say goodbye.
The informal usage of goodbye is goodbye. You can use this usage especially when you hope to see someone again soon.
4. Beth: Good idea. See you later.
Beth: Good idea. See you then!
5. Vincent: Thank you again, Lisa. See you later.
Vincent: Thanks again, Lisa. See you later.