System: Where would you be departing from?
User: I will be departing from Ely.
User satisfaction rating (1-5, annotator mean): 3.5
System: Could you leave on Friday? There are no trains available on Saturday from Ely to Cambridge.
User: Sorry, I misspoke. I am actually departing from Broxbourne.
User satisfaction rating (1-5, annotator mean): 2.5
System: There are about 19 trains available. I can narrow that down some if you tell me if you want to leave or arrive by a certain time.
User: I would like to arrive by 15:30.
User satisfaction rating (1-5, annotator mean): 3.5
System: There are 9 trains that meet your criteria that day, one leaving every hour from 05:32. Do you have a departure time preference?
User: No, we just want to get there either at or right before 15:30, please. Can you get me 8 tickets on the closest train to that time?
User satisfaction rating (1-5, annotator mean): 2.75
System: 8 tickets for the TR7846 leaving at 09:32 your reference number is D0CG7JD3. Anything else today?
User: Does this train have easier access for people with disability?
User satisfaction rating (1-5, annotator mean): 3.5
System: All the trains are handicap accessible and assistance can be provided. Shall I book your 8 tickets for you now?
User: My itinerary is not confirmed yet, would it be possible to change my train ticket if it becomes necessary?
User satisfaction rating (1-5, annotator mean): 3.5
System: You must refund your ticket and buy a new one. Would you like to book a reservation?
User: I'm sorry, I meant that I need 5 ticket for the train booked. Can you fix this?
User satisfaction rating (1-5, annotator mean): 2.5