/tellraw @p {
    text: "Teleport to: ",
    extra: [
        {
            text: "Spawn",
            color: "yellow",
            hoverEvent: {
                action: "show_text",
                value: "Teleport to Spawn"
            },
            clickEvent: {
                action: "run_command",
                value: "/tp 0 66.1 0"
            }
        }
    ]
}