Hello. I'm leaving the city on Wednesday and need to find a train, but it must be after 13:00. Can you help me book a ticket? 
There are over 100 different trains available, what destination do you have in mind?
I would like to go to cambridge from london liverpool street.
there is a train at 13:59 that arrives by 1527
That sounds perfect.  Can you book 7 seats for me?
I was able to book the seats, reference number is 6KIWFNOU.
I'm also looking for a moderate priced restaurant in the area of west.
Would you be interested in british, indian, or italian?
It doesn't matter.
There is Prezzo which is an italian restaurant. would you like me to make a reservation?
Sure, for the same group of people on the same day at 20:00.
I have you booked for 7 people on Wednesday at 20:00 at Prezzo.
I also need the reference number. 
I apologize. Your reference number is  I0V2JZIC. Is there anything else I can assist you with? 
No, thank you, that should be all.
Welcome. Have a lovely day.