System: Sure, where? And how many tickets?
User: I need 4 tickets, preferably in Chicago
User satisfaction rating (1-5, annotator mean): 2.75
System: What about the date? Anything you had in mind?
User: I want it on the 1st of March please
User satisfaction rating (1-5, annotator mean): 3.25
System: What kind of event do you want to go to?
User: I'm a baseball fan, so the White Sox Vs Tigers I hear is gonna be great
User satisfaction rating (1-5, annotator mean): 3.25
System: Cool, so 4 tickets for today in Chicago for the White Sox Vs Tigers game?
User: Actually scratch that, let's do the Giants Vs Marlins instead
User satisfaction rating (1-5, annotator mean): 3.25
System: So 4 tickets to the Giants Vs Marlins?
User: Someone dropped out, so I just need three tickets
User satisfaction rating (1-5, annotator mean): 3
System: Ok so 3 tickets for that game today.
User: Yes that's perfect
User satisfaction rating (1-5, annotator mean): 3.75
System: Sorry but I couldn't get those tickets. Can I try something else for you?
User: Try to buy them again but for this Sunday
User satisfaction rating (1-5, annotator mean): 3.75
System: OK so 3 tickets for the Giants Vs Marlins in Chicago for the day after tomorrow
User: Yup, that's right
User satisfaction rating (1-5, annotator mean): 3.5
System: Sorry but I still couldn't book it, should I try something else?
User: No let's just do it another time
User satisfaction rating (1-5, annotator mean): 2.5