Closing a Conversation
Here are some phrases and expressions for closing a conversation in English.
See also: Free-English-Study: Closing a Conversation
It's been nice talking to you.
Nice talking to you too.
(I'm sorry, but) I have to go now.
See you later.
Catch you later
For Conversation practice :
Situations : Closing a Conversation
Textbook : New Interchange Intro, Chapter 1