Domains: restaurant, train

user: Can you help me get train tickets leaving london kings cross arriving by 18:30?

assistant: What day would you like to travel?

user: On Thursday please.

assistant: TR5219 is leaving London Kings Cross at 05:17 and arriving by 06:08 at cambridge on friday

user: Can you tell me the price and travel time of that?

assistant: I'm sorry about the misinformation. The TR2775 leaves on Thursday like you want. The price is 23.60 and the travel time is 51 minutes.

user: Thank you. I am also looking for a place to eat, called graffiti.

assistant: I have that, what would you like to know and would you like to book it?

user: I would like to make a booking for 1 people at 21:00 on the same day.

assistant: I'm sorry, they were not able to accommodate that request. Would you like to try a different time?

user: How about 20:00 instead?

assistant: I'm sorry, but that booking is also unavailable. Is there a different day or time I can check for you? Maybe earlier in the evening?

user: If 21:00 and 20:00 are not available, I guess I am not interested in booking anything. Can you check one more time for 20:00?

assistant: It was still unsuccessful. I am sorry. Any other times you would like me to check?

user: No, unfortunately I need either 21:00 or 20:00. Thank you for checking.

assistant: I tried again, but there may be some technical difficulty.None of the reservations I've tried are working. I tried for every time between your requests. Can I help with anything else?

user: No, but I appreciate the help.

assistant: I hope you have a lovely day.

user: Thanks so much, but I just realized I am missing a crucial bit of info. What is the departure time on my train, please? The corrected train, that is.

assistant: I don't believe we were able to complete a reservation. Would you like to try again?

user: Yes, a train to Cambridge from london kings cross on Thursday by 18:30. If you can get a table for 1 at Graffiti that day at 20:00 or 21:00 too, great.

assistant: Booking was successful, the total fee is 47.2 GBP payable at the station . Reference number is : R8P7XT7B .

user: That's all I need. Thanks.

assistant: OK. I'm sorry I wasn't able to get you into the restaurant you wanted. Your train TR2512 is leaving at 13:17. Let me know if you ever need anything else.