import json


def create_return_body(mobile_number, message, colour="#FFFFFF"):
    """
    Create jsonified return response body

    Parameters
    ----------
    number: str
        User mobile number of the format "+91XXXXXXXXXX"
    message: str
        User status message
    color: str
        User status colour hex code
    """

    body = {"mobile_number": mobile_number, "message": message, "colour": colour}

    return json.dumps(body)