System: No problem. Where to and from, and what day do you want to leave?
User: I'm going from NY to San Francisco and leaving on Saturday this week. Any ticket in Economy class is fine.
User satisfaction rating (1-5, annotator mean): 3
System: What are your preferred airlines?
User: I usually fly Delta Airlines.
User satisfaction rating (1-5, annotator mean): 3
System: Ok. When do you plan to fly back and what time?
User: I'll be flying back on March 13th, preferably around eleven in the morning.
User satisfaction rating (1-5, annotator mean): 3.25
System: Ok, just to confirm, you'd like to book 1 round-trip ticket in Economy with Delta Airlines from New York to San Francisco, flying out tomorrow at 2:30 pm and returning on March 13th at 11 am.
User: No, actually, can you change the time to 14:00 for the return flight?
User satisfaction rating (1-5, annotator mean): 2.75
System: Sure, just to confirm, your return flight will be at 2 pm in Economy.
User: Oh also, can you change the return date to the 12th?
User satisfaction rating (1-5, annotator mean): 3
System: Sure, just to confirm, your return flight will be on March 12th at 2 pm. Is that right?
User: Yes, that's perfect. Which airport am I flying to and is the ticket refundable?
User satisfaction rating (1-5, annotator mean): 3.5
System: Sorry, it looks like there's some kind of error and I'm not able to book that ticket. Can I reserve something else for you?
User: I need to make that reservation. My plans might change, though, so the tickets need to be refundable.
User satisfaction rating (1-5, annotator mean): 3
System: Ok, I'll try again. Just to confirm, I'm booking 1 round-trip ticket in Economy with Delta Airlines from New York to San Francisco, leaving tomorrow at 2:30 pm and returning on March 12th at 2 pm. Is that right?
User: Yes, that's perfect.
User satisfaction rating (1-5, annotator mean): 4.5
System: Sorry, I'm getting an error again and can't make the reservation. Is there something else you'd want?
User: No, forget about it. Thanks for your help anyways.
User satisfaction rating (1-5, annotator mean): 3.5