Domains: restaurant, train

user: I am looking for a cheap place to dine that serves belgian food.

assistant: I'm sorry, but there are no belgian restaurants in all of cambridge. Would you like a different type of cuisine?

user: Let's try Indian food, but it needs to be near the centre of town.

assistant: There are no Belgian restaurants in the center of the town. Would you like to try another type of restaurant?

user: Is there a cheap Italian place in the centre instead?

assistant: Yes, I've got pizza hut city centre in that area. Would you like to try it?

user: I want to book a table for 1 person at 16:30 on saturday.

assistant: your booking was successful, your reference number is 4O3358Y2 . is ther anythin else i may help you with?

user: Thank you I also need a train arriving by 12:45 going to cambridge

assistant: I have 525 trains travelling to Cambridge, could you be more specific on what day you'd like to leave and where you are departing from?

user: Yes, I'll be leaving from Birmingham New Street on Saturday.

assistant: There are 7 trains available. Are you looking for a specific departure time?

user: Whichever gets me there closest to 12:45 please. I need to book 1 ticket and I also need the reference number, please.

assistant: TR7802 has you arriving at 12:23. I've booked your ticket, and your reference number is 2I1HVLG4 . Do you need anything else today?

user: Actually I don't need anything else. Thank you.

assistant: Great! Thanks for allowing me to assist you. Goodbye!