URL Rewriting - Append page name along with query string in.
  <rule name="Rewriteaspx" stopProcessing="true">
         <match url="reservations/reservation.aspx$" />
         <action type="Redirect" url="reservations/reservation.aspx" redirectType="Permanent" />
   </rule>
   <rule name="removeextension" enabled="true">
       <match url="reservations/reservation" negate="false" />
           <conditions>
               <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
               <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
               <add input="{URL}" pattern="(.*)\.(.*)" negate="true" />
           </conditions>
           <action type="Rewrite" url="reservations/reservation.aspx" />
   </rule>
 <rule name="Rewriteaspx1" stopProcessing="true">
                <match url="reservations/reservation" />
                <conditions trackAllCaptures="true">
                    <add input="{QUERY_STRING}" pattern="&?(token=[^&]+)&?" />
                    <add input="{REQUEST_URI}" pattern="reservations/reservation.aspx" negate="true" />
                </conditions>
                <action type="Redirect" url="reservations/reservation.aspx?{C:1}" appendQueryString="true" redirectType="Found" />
            </rule>