Why do they ask that?

About a year ago when you pull to the order box Taco Bell always asks
"Hello
how are you doing today?"  And then waits for a response.  ALL of the
location's in my area do this, why?  It is really annoying, because then
there isthe awkward moment where you have to decide to actually answer the
question and then wait for the responce...  or just continue on with your
order.

Do all Taco Bell's nationwide have this policy?  It really is out of place
for them to ask it, because it should be all business.  The politest thing
to say, if that's what they are looking for, is "how may I help you",
because that logically leads to the next part of the conversation, witch
is
the your order.

Just a minor annoyance, and I hope that other restourant's don't start
doing
it.