System: Sorry, for time being there is no deal. I am happy to assist you. Where are you flying to?
User: I will be travelling to Vancouver, BC.
User satisfaction rating (1-5, annotator mean): 3.33
System: To reach that destination, you can leave from Las Vegas. Do you wish to book your ticket from that city for your departure?
User: Yup! Please book the flights from Las Vegas.
User satisfaction rating (1-5, annotator mean): 3.67
System: Sure. Would you prefer to travel with American Airlines and you can leave by morning at 9:30 am. It has 1 stops and this is the good one among the 4 flights I found for you. It would cost $199 for your travel. Do you want me to continue with booking?
User: Sorry. Please can you look with Delta Airlines for I want to travel a little bit late. I need only one ticket.
User satisfaction rating (1-5, annotator mean): 2.67
System: Sure. Can I book with Delta Airlines that takes off at 12:20 pm which has only 1 stops. I think this is the best 1 flight I can find for you. Your travel cost will be around $211.
User: Fine. Is round trip available with that flight?
User satisfaction rating (1-5, annotator mean): 3.33
System: I think there is a return flight available. On which day you prefer? Either a morning or evening return?
User: I would prefer to return in the early morning on 13th of this month and if there is a ticket available in Economy class, it would be good.
User satisfaction rating (1-5, annotator mean): 3.33
System: I can find 1 flight for you with Delta Airlines that takes off at 12:20 pm and the return take off will be at 3:20 am. $225 would be the total cost including tax. Do you want me to continue with booking?
User: Yup.
User satisfaction rating (1-5, annotator mean): 4.33
System: Is there anything to help with?
User: Nope, thanks much for your help.
User satisfaction rating (1-5, annotator mean): 4.33