U: I need information on a train to Cambridge. I prefer to get there by 16:30

S: is there a day of the week you want to travel ?

U: Saturday is nice

S: what about TR5729? it leaves at 13:17 on saturday

U: Don't you need to know where I am leaving from?  Does that train leave from Ely?

S: I'm sorry that one leaves from Cambridge. TR8176 leaves from Ely at 15:35 and arrives at 15:52.

U: Please book TR8176 for 6 people.

S: Booking was successful, the total fee is 21.12 GBP payable at the station. Reference number is : J6SICRD5. Is there anything else I can help with?

U: Thank you! Can you please tell me about a restaurant called Cotto?

S: I can. It's a restaurant in the centre that serves British food. It's moderately priced. Would you like to book a table?

U: Wait, could you tell me if Cotto has exceptional service as well?
S: Two people feel the staff there isn't the greatest. One person felt that the staff was good, so I'm guessing they're a bit mediocre.