Python questions

username=input()
print("\nComand using '@,!,$' - Ex: @Hi, !Melon, $Google.\n")
Menu = {"Chat": ['Hi','Hello', 'Bye']
        ,"Songs": ['Melon','Bugs','Spotify']
        ,"Search": ['Google','Daum','Naver']
        }

print(Menu) 

while True:

    myorder = input()

    if myorder.startswith('@'):
        print(myorder[1:] + ' ' + username + '.' )
        continue

    elif myorder.startswith('!'):
        print('myorder[1:] + ' is a Music application.')
        continue

    elif myorder.startswith('$'):
        print('myorder[1:] + ' is a Website.')
        continue

    elif print('Please enter your order in a valid form'):
        continue