Below is the inspect of the element
<div class="input-group ref-container ">
<input id="sys_display.incident.assignment_group" name="sys_display.incident.assignment_group" aria-labelledby="label.incident.assignment_group" type="search" autocomplete="off" autocorrect="off" value="PeopleSoft Reporting ONLY" ac_columns="u_full_name" data-type="ac_reference_input" data-completer="AJAXTableCompleter" data-dependent="" data-dependent-value="" data-ref-qual="" data-ref="incident.assignment_group" data-ref-key="null" data-ref-dynamic="false" data-name="assignment_group" data-table="sys_user_group" class="form-control element_reference_input " style="; " spellcheck="false" onfocus="if (!this.ac) addLoadEvent(function() {var e = gel('sys_display.incident.assignment_group'); if (!e.ac) new AJAXTableCompleter(gel('sys_display.incident.assignment_group'), 'incident.assignment_group', '', ''); e.ac.onFocus();})" aria-required="true" role="combobox" aria-autocomplete="list" aria-owns="AC.incident.assignment_group">
<span class="ref_dynamic_placeholder">A new record with this value will be created automatically</span>
<span class="input-group-btn">
<button id="lookup.incident.assignment_group" name="lookup.incident.assignment_group" type="button" class="btn btn-default" title="Lookup using list" aria-haspopup="true" data-for="sys_display.incident.assignment_group" data-type="ac_reference_input" tabindex="-1" role="button" aria-label="Look up value for field: Assignment group" data-original-title="Lookup using list">
<span class="icon icon-search" aria-hidden="true">
</span>
</button>
</span>
</div>
How can I write the value "PeopleSoft Reporting ONLY"
into a variable?