I'd like a round-trip commercial airline flight from Sacramento to Denver.
Sure, when would you like to leave?
Today.
When would you like to return?
In 3 days.
Any other preferences?
In the afternoon. I like the afternoon for both.
Anything else?
That's it. Can I have commercial and non-stop?
I see that there is a flight that will cost you $614, leaving at 3:55 pm, non-stop, is that okay?
Okay. That sounds good.
Would you like to book a return flight?
Yes, 3 days from now.
Would you like to have same preferences?
Yes.
How about a flight that will cost you $697, leaving at 3:25 pm, non-stop?
Alright. That's fine.
You're all set.