CybroAddons/odoo_website_helpdesk/data/rating_template.xml

<odoo>
    <data>
          <record id="ticket_created" model="mail.template">
          <field name="name">Create Ticket</field>
          <field name="model_id" ref="odoo_website_helpdesk.model_help_ticket"/>
          <field name="auto_delete" eval="True"/>
          <field name="email_to">{{object.customer_id.email}}</field>
          <field name="subject">Ticket Created</field>
          <field name="body_html" type="html">
              <p>
                  Dear <t t-out="object.customer_id.name"/>
                  <br/>
                  Your Ticket  <t t-out="object.name"/> is Created and Assigned.Kindly Wait while we're resolving your Query
                  <br/>
                  <br/>
                  Thanks.
            </p>

          </field>
      </record>

        <record id="helpdesk_rating" model="mail.template">
            <field name="name">Close Ticket And Feedback</field>
            <field name="model_id"
                   ref="odoo_website_helpdesk.model_help_ticket"/>
            <field name="auto_delete" eval="True"/>
            <!--          <field name="email_from">{{object.customer_id.email}}</field>-->
            <field name="email_to">{{object.customer_id.email}}</field>
            <field name="subject">Ticket Closed</field>
            <field name="body_html" type="html">
                <p>
                    Dear
                    <t t-out="object.customer_id.name"/>
                    Your Ticket
                    <t t-out="object.name"/>
                    Is Closed
                    <br/>

                    <button class="btn btn-info" role="button"
                            style="border:1px solid black;background-color:purple;padding-x:20px;padding-y:15px;border-radius:10px; width:120px;">
                        <a t-attf-href="/rating/{{object.id}}"
                           style="text-decoration:none;color:white;font-weight:bold;font-size:18px;">
                            Rate Now
                        </a>
                    </button>
                    <br/>
                    <br/>
                    Thanks.
                </p>

            </field>
        </record>
        <record id="ticket_reopened" model="mail.template">
            <field name="name">Reopened Ticket</field>
            <field name="model_id"
                   ref="odoo_website_helpdesk.model_help_ticket"/>
            <field name="auto_delete" eval="True"/>
            <field name="email_to">{{object.customer_id.email}}</field>
            <field name="subject">Ticket Reopened</field>
            <field name="body_html" type="html">
                <p>
                    Dear
                    <t t-out="object.customer_id.name"/>
                    <br/>
                    Your Ticket
                    <t t-out="object.name"/>
                    is Reopened
                    <br/>
                    <br/>
                    Thanks.
                </p>

            </field>
        </record>
        <record id="ticket_approved" model="mail.template">
            <field name="name">Approve Ticket</field>
            <field name="model_id"
                   ref="odoo_website_helpdesk.model_help_ticket"/>
            <field name="auto_delete" eval="True"/>
            <field name="email_to">{{object.customer_id.email}}</field>
            <field name="subject">Ticket Solved</field>
            <field name="body_html" type="html">
                <p>
                    Dear
                    <t t-out="object.customer_id.name"/>
                    <br/>
                    i think your Problem is Solved.
                    Your Ticket
                    <t t-out="object.name"/>
                    is Done
                    <br/>
                    <br/>
                    Thanks.
                </p>

            </field>
        </record>
        <record id="ticket_canceled" model="mail.template">
            <field name="name">Cancel Ticket</field>
            <field name="model_id"
                   ref="odoo_website_helpdesk.model_help_ticket"/>
            <field name="auto_delete" eval="True"/>
            <field name="email_to">{{object.customer_id.email}}</field>
            <field name="subject">Ticket Canceled</field>
            <field name="body_html" type="html">
                <p>
                    Dear
                    <t t-out="object.customer_id.name"/>
                    <br/>
                    Your Ticket
                    <t t-out="object.name"/>
                    is Canceled Due to Some Reasons
                    <br/>
                    <br/>
                    Thanks.
                </p>

            </field>
        </record>
    </data>
</odoo>