this_that-other

phrase1 = input("-Talk to me. ")
if phrase1 == "hi" or phrase1 == "hey":
    print("-Hello")
phrase2 = input("-What is the weather today? ")
if phrase2 != "I don't know":
    print("-Oh! " + phrase2)
phrase3 = input("-What is your name? ")
if phrase3 != "nothing" or phrase3 != "Elena":
    print("-Nice to meet you " +phrase3)
elif phrase2 == "-What is your job? ":
    print("-It is very interesting " +phrase3)
else:
    print("-Sorry I don't understand " + phrase2)
print("-Bye bye " + phrase2)