Hello
Hello, how can I help?
I need to find a flight from New York City to Pittsburgh.
On what day do you want the plane to arrive?
May the 19th, please. It's my hamster's birthday.
Very exciting! Will you require 1st class travel to get to the celebration?
Oh yes! I mean, for an occasion so glorious, it pays to travel in first class! Gertrude will be thrilled at my thoughtfulness.
Unfortunately there are no flights that match your search. Would you like to change any of your criteria?
Oh dear. Gertrude will be crushed. Not literally. though. How about the 18th?
Again, nothing is available. Perhaps you can choose not to fly First Class, just this one time.
Oh dear. Yes, yes... I suppose we could make that sacrifice. 
Right, I found a Business flight with Delta for 370 credits
 that takes 8 hours to get to Pittsburgh.
Perfect! Thank you for your time!
Is there anything else that I can do for you?
No thank you... goodbye!
Thank you and goodbye!