I need help finding a flight!  Can you help me?
Where are you departing from?
Detroit.  Go Lions!
Where are you going to?
Pittsburgh.  Go Steelers!
On what day do you want the plane to arrive?
On the 9th please.
Right, I found a Business flight with Delta for 288 credits
 that takes 3 hours to get to Pittsburgh.
Oh perfect that's pretty cheap!  I have been hearing that airline tickets have gone down.  
Is there anything else that I can do for you?
Can you book me a flight if I give you the flight ID?
Yes
Great!  The flight Id is 111.  Easy to remember.  I have to get on that flight so do whatever you need to do!  
May I have your name, please?
Yes I am Alexis.
Sorry I can't get you on that flight, it's fully booked.
Can you try again?  I don't trust technology maybe there was a glitch in the system.
Sorry, but the flight with id '111' is not available any more.
Hmmmm well I guess I will just drive then.  Can you check the weather in Pittsburgh for me then to see which vehicle I need to drive?
It will be Raining all day on Sunday in Pittsburgh, with temperatures of around 12 degrees celsius.
Ok I will need an umbrella and a raincoat then.  Thank you for all the help!
Thank you and goodbye.