Reservation Form in HTML
The most obvious mistake — which makes your code malformed HTML — is the extra &lt; before TYPE:

&lt;P&gt;ADDRESS&lt;INPUT

&lt;TYPE="TEXT" … /&gt;


The next biggest issue, in my opinion, is that your &lt;P&gt; tags aren't consistently being closed.  Only in the earliest days of HTML was it acceptable to use an unclosed &lt;P&gt; as a line break.  These days, it's generally accepted that paragraphs should lie between &lt;P&gt; and &lt;/P&gt;.

The next thing you should do is to add a doctype declaration at the very beginning, which tells the browser which version of the HTML standard is being used.  Without the doctype, browsers will interpret the document in slightly non-standard ways, especially if you use CSS.  If you have no preference for any particular doctype, use HTML5:

&lt;!DOCTYPE html&gt;
&lt;html&gt;
    ...
&lt;/html&gt;


Once you have declared a doctype, you can then run the code through an HTML validator, which will tell you everything else that is syntactially incorrect.  For example, it's OK to say

&lt;option selected="selected"&gt;...&lt;/option


or

&lt;option selected&gt;...&lt;/option&gt;


but not

&lt;option selected="true"&gt;


HTML is case-insensitive, but you should choose either uppercase or lowercase consistently anyway.  Since XHTML mandates lowercase, I recommend using lowercase everywhere too, even if you are using HTML instead of XHTML.

Oddly, your form has no &lt;form&gt; tag.