Reply to comment in stream

import praw

userAgent = 'xxx'
cID = 'xxx'
cSC= 'xxx'
userN = 'xxx'
userP ='xxx'
numFound = 0

reddit = praw.Reddit(user_agent=userAgent,
                     client_id=cID,
                     client_secret=cSC,
                     username=userN,
                     password=userP)

subreddit = reddit.subreddit('xxx')

keywords = {
    'phrase one': 'reply for phrase one',
    'phrase two': 'reply for phrase two',
    'phrase three': 'reply for phrase three',
    'phrase four': 'reply for phrase four'
}

def match_phrase(kw, cmt):
    if kw in cmt:
        return True
    return False

for comment in subreddit.stream.comments(skip_existing=True):
    cmt = comment.body.lower()
    for kw in keywords:
        if match_phrase(kw, cmt):
            print("---------------------------------")
            print("Found: " + kw)
            print('Bot saying: ', keywords[kw])
            comment.reply(keywords[kw])
            break