how to run multiple python functions at a time

[admill1519]

def som():
cursor.execute("select Number from demo")
res = cursor.fetchall()
for i in res:
mac.send_message_to("lunch after 15mins",str(i[0]))

@signals.initialized.connect
def notify(entity):
a = str(datetime.date.today())
cursor.execute("select Time from demo")
b = cursor.fetchall()
for i in b:
tm = i[0].strftime("%Y-%m-%d %H:%M")
dy = tm.split(" ")[0].strip()
hr = tm.split(" ")[1].strip()
if dy == a:
schedule.every().day.at(hr).do(som)

     while True:
         schedule.run_pending()
         time.sleep(60)

This function sends the notifications to the user at particular time. If I am using this function bot is not able to give response to the other queries like "hi","help" or any other which I have defined. How can I run both functions in parallel so that bot can send message to the relevant query as well as it will send auto notification to the user.