Add drop down answer to the On Success code

Add drop down answer to the On Success code

Hi there

Im having trouble adding the code to send email with confirmation details with a drop down box. Here is half of my script, My drop down box called "Chain"

Can any one help me with a script to add?

sendmail
[
from :zoho.adminuserid
to :input.Email
cc:"sample @gmail.com"
subject :"new booking"
message :input.Full_Name + ",&nbsp;<br />\n<br />\nIt was good to speak to you on the phone earlier.&nbsp;
<br />\nAs discussed, please find below the details of your booking.&nbsp;<br />\n
Please be aware of our terms and conditions below.&nbsp;<br />\n
Please keep us up to date with any changes that you may have to your move.
&nbsp;<br />\nIf you have any questions please give us a call back on the number below.
&nbsp;<br />\n<br />\nMany thanks,&nbsp;<br />\n<br />\n" + input.booked_by + "<br />\n
<div><b><br />\n<br />\n<br />\n</b></div>\n<div style=\"font-family: verdana, arial; font-size: 12px; -webkit-border-horizontal-spacing: 4px; -webkit-border-vertical-spacing: 4px; margin-left: 40px; \"><strong>Date job required<span class=\"Apple-tab-span\" style=\"white-space:pre\">                                      
</span></strong>" + input.Date_1 + "<br />\n<b>Quote_id<span class=\"Apple-tab-span\" style=\"white-space:pre\">         
</span></b>" + input.quote_id + "</div>\n<div style=\"font-family: verdana, arial; font-size: 12px; -webkit-border-horizontal-spacing: 4px; -webkit-border-vertical-spacing: 4px; margin-left: 40px; \"><b>Quote price &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</b>
" + input.Quote_price + "</div>\n<div style=\"font-family: verdana, arial; font-size: 12px; margin-left: 40px; -webkit-border-horizontal-spacing: 4px; -webkit-border-vertical-spacing: 4px; \">
<strong>Pick up time &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</strong>
" + input.Date_Time_1 + "<br />\n<strong>End Time &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </strong>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; <span class=\"Apple-tab-span\" style=\"white-space:pre\">                        </span>
" + input.End_time + "<br />\n<b>Pick up address</b>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class=\"Apple-tab-span\" style=\"white-space:pre\">                        </span>


what will be the code for drop down answer to the code? I hope that makes sense. thank you