U: I'm looking for a train from london liverpool street.

S: I have many trains that leave from London Liverpool Street. When would you like to leave?

U: I would like to leave on Sunday to Cambridge and get there by 16:00 or before.

S: There are 5 options on Sunday from london liverpool street to cambridge. Would Sunday early morning be better? You could arrive by 07:07. Or would you prefer later in the morning?

U: I would prefer later in the morning if possible.

S: The TR9835 train leaves at 11:39. Would you like me to book that for you?

U: Yes, please. I'll need to book for 6 people.

S: Alright, you're all booked, your reference number is A6PU52R6. Anything else I can get for you?

U: I'd like a place to stay in the east of the city.

S: There are 6 guesthouses and 1 hotel in the east of Cambridge, ranging from cheap to expensive.  Do you have a preference?

U: Are any of them moderately priced with free wifi included?

S: Yes. I would recommend the Carolina Bed and Breakfast. Would you like to go ahead and book a room?

U: Does the Carolina Bed and Breakfast have clean rooms?
S: The Carolina Bed and Breakfast has really clean rooms, and not a single bad review about how clean they are.