Domains: train, hotel

user: I am looking for a guesthouse to stay at in the moderate price range.

assistant: How about the a and b guest house?

user: Does it have free parking?

assistant: No, it does not offer that. Would you like something that does?

user: Yes. I need free parking, and I prefer the southern part of town.

assistant: ok, I have a couple that meet that criteria. Would you like 3 or 4 stars?

user: I have no preferences. You can just pick one. I'd like it for 7 people for 5 nights starting from saturday.

assistant: This is unavailable would you like to book a shorter stay or a different day?

user: How about 3 nights for the same day and number of people?

assistant: Great! You're booked for 3 nights at Bridge Guest House with reference number AH7L4RXZ . May I help with anything else?

user: Yes, I need a train out of Peterborough into Cambridge, please.

assistant: When do you need that train?

user: I need it for Saturday and I want to arrive by 18:15.

assistant: TR4494 will depart at 17:19 on saturday and arrive by 18:09. Would you like me to book it for you?

user: Yes please. Can you book 7 tickets on that train? I'd like a reference number if possible.

assistant: Booking was successful, the total fee is 92.4 GBP payable at the station. Reference number is : 8JPQ3AQT .

user: Great! You have helped me tremendously. I don't need anything else. Thank you!

assistant: Let us know if you need anything else. Good bye.