def parse_credentials(service_label, credentials):
    """
        Returns the credentials that match the service label
        pass credentials in the following format:
        {
        "watson_conversation_username": "username",
        "watson_conversation_password": "password",
        }
        :param string serviceLabel: The service label
        :param object credentials: The credentials from starterkit
    """
    key = 'watson_' + service_label + '_'
    creds = {}
    if credentials is not None:
        cred_keys = credentials.keys()
        filtered_keys = list(filter(lambda x: x.find(key) != -1, cred_keys))
        for k in filtered_keys:
            creds[k.replace(key, '')] = credentials[k]
    return creds