Priceline.com / other multi-form input searches

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Is there a way to get multi-textbox input from a mycroft search? Taking Priceline as an example, the string is encrypted and therefore unusable.
It could work, however, if 1) priceline provided a plaintext search string capability, or if 2) they provided an api which did the same thing.

From the client side, mycroft could intelligently stick data in the search string into the priceline form itself. The form would have to be usable, so
ghosttext would appear in the priceline mycroft search field, based on perhaps default values set in prefs.

A basic search requires:
from to depart-date returndate quantity seatingclass

Which looks like (with all fields modified):
SFO JFK 06/01/2009 06/19/2009 2_tickets business

A default ghosttext field would look like:
SFO dest [currentdate] 1_ticket economy

Ideally, they would write one for their own site, but Im interested in the idea of working around problematic or particular field inputs like these. Essentially, the mycroft plugin, instead of just constructing search strings, would be in the business of hacking web pages on the fly.

Don't know. Too much?