enterprise-addons/room/views/room_booking_views.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <record id="room_booking_view_search" model="ir.ui.view">
        <field name="name">Bookings search view</field>
        <field name="model">room.booking</field>
        <field name="arch" type="xml">
            <search string="Booking">
                <field name="name" string="Meeting name"/>
                <field name="organizer_id"/>
                <field name="room_id"/>
                <field name="office_id"/>
                <filter name="organizer_id" string="My Meetings" domain="[('organizer_id', '=', uid)]"/>
                <filter name="group_by_organizer_id" context="{'group_by': 'organizer_id'}"/>
                <filter name="group_by_room_id" context="{'group_by': 'room_id'}"/>
                <filter name="group_by_office_id" context="{'group_by': 'office_id'}"/>
            </search>
        </field>
    </record>

    <record id="room_booking_view_gantt" model="ir.ui.view">
        <field name="name">room.booking.view.gantt</field>
        <field name="model">room.booking</field>
        <field name="arch" type="xml">
            <gantt js_class="room_booking_gantt"
                date_start="start_datetime"
                date_stop="stop_datetime"
                default_group_by="room_id"
                precision="{'day': 'hour:quarter', 'week': 'day:half', 'month': 'day:half', 'year': 'day:full'}"
                default_scale="day"
                color="organizer_id"
                string="Bookings"
                plan="0">
                <templates>
                    <div t-name="gantt-popover">
                        <div class="o_gantt_popover">
                            <ul class="ps-1 mb-0 list-unstyled">
                                <li>
                                    <strong>Organizer: </strong>
                                    <t t-out="organizer_id.display_name"/>
                                </li>
                                <li class="o_gantt_popover_content_item mt-2">
                                    <t t-out="start_datetime.toFormat('f ')"/>
                                    <i class="fa fa-long-arrow-right" title="Until"/>
                                    <t t-out="stop_datetime.toFormat(' f')"/>
                                </li>
                            </ul>
                        </div>
                    </div>
                </templates>
            </gantt>
        </field>
    </record>

    <record id="room_booking_view_calendar" model="ir.ui.view">
        <field name="name">room.booking.view.calendar</field>
        <field name="model">room.booking</field>
        <field name="arch" type="xml">
            <calendar date_start="start_datetime" date_stop="stop_datetime" color="room_id" quick_create="0" event_open_popup="1">
                <field name="room_id"/>
            </calendar>
        </field>
    </record>

    <record id="room_booking_view_list" model="ir.ui.view">
        <field name="name">room.booking.view.list</field>
        <field name="model">room.booking</field>
        <field name="arch" type="xml">
            <list duplicate="0" sample="1">
                <field name="start_datetime"/>
                <field name="stop_datetime"/>
                <field name="name" string="Name"/>
                <field name="room_id"/>
                <field name="organizer_id" widget="many2one_avatar_user"/>
            </list>
        </field>
    </record>

    <record id="room_booking_view_kanban" model="ir.ui.view">
        <field name="name">room.booking.view.kanban</field>
        <field name="model">room.booking</field>
        <field name="arch" type="xml">
            <kanban sample="1">
                <templates>
                    <t t-name="card">
                        <field name="display_name" class="fw-bolder fs-5"/>
                        <div class="ps-1 mb-0">
                            <strong>Room: </strong>
                            <field name="room_id"/>
                        </div>
                        <div class="ps-1">
                            <strong>Date: </strong>
                            <field name="start_datetime"/>
                            <i class="fa fa-long-arrow-right mx-1" title="Until"/>
                            <field name="stop_datetime"/>
                        </div>
                        <footer class="pt-0">
                            <field name="organizer_id" widget="many2one_avatar_user" class="ms-auto"/>
                        </footer>
                    </t>
                </templates>
            </kanban>
        </field>
    </record>

    <record id="room_booking_view_form" model="ir.ui.view">
        <field name="name">room.booking.view.form</field>
        <field name="model">room.booking</field>
        <field name="arch" type="xml">
            <form duplicate="0">
                <sheet>
                    <div class="oe_title mb-3">
                        <label for="name"/>
                        <h1>
                            <field name="name" placeholder="e.g. Team Meeting"/>
                        </h1>
                    </div>
                    <group>
                        <group>
                            <field name="room_id" placeholder="Select a Room..."/>
                            <field name="stop_datetime" invisible="1"/>
                            <field name="start_datetime" string="Date" widget="daterange" options="{'end_date_field': 'stop_datetime'}"/>
                        </group>
                        <group>
                            <field name="organizer_id" widget="many2one_avatar_user"/>
                        </group>
                    </group>
                </sheet>
                <chatter/>
            </form>
        </field>
    </record>

    <record id="room_booking_action" model="ir.actions.act_window">
        <field name="name">Bookings</field>
        <field name="path">rooms</field>
        <field name="res_model">room.booking</field>
        <field name="view_mode">gantt,calendar,list,kanban,form</field>
        <field name="help" type="html">
            <p class="o_view_nocontent_smiling_face">
                No Bookings found. Let’s schedule one!
            </p><p>
                Make meeting room sharing easy by centralizing all meetings in this App
            </p>
        </field>
    </record>
</odoo>