Most of them are true. When people ordering food, I also hear lots of people say " I would like", that's generally fine in Canada, not sure about other countries. (I will try to ask someone later.)
It's was nice talking to you. It is usually "It's nice talking to you.", not sure why there's a "was" in that sentence. It is really commonly used between people just met, and I think it is just a polite way to end the conversation. I don't think people say it during the middle of the conversation so I am not sure what it is like to serve as a sign of wishing to end a boring conversation.
Thank for calling. It is either "thanks" or "thank you" and it is just a saying when someone called and you chatted, in the end of the conversation, the one picked up the phone call generally say thanks for calling to express that "Thanks for thinking of me." or things like that. That's not really a way to suggest one takes a conversation to an end.
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Well, I am not 100% sure, but I don't think 1,7,8,9 in Part 2 works that way. I will try to ask.