I would like to find a train that leaves on Friday and arrives by 19:30.
What location will you be departing from and what location will you be arriving at?
I need to go from broxbourne to cambridge by 19:30.
TR4322 will depart broxbourne at 17:32 and arrive in cambridge at 18:32. Would you like tickets for that train?
Can you give me the price and travel time on that?
The price is 17.90 and the travel time is 90 minutes 
I also need a suggestion for a cheap restaurant in the centre of town.
There are several cheap restaurants what type of food do you prefer?  
Can you give me the reference number for the train?  I would like cheap italian food in the center.  
How many passengers should I book on the train? There are three cheap Italian places. I could suggest Zizzi Cambridge. Would you like to book a table?
Don't worry about booking the train.  I just need a reservation for Zizzi Cambridge for 8 people at 10:45.  
Booking was successful. The table will be reserved for 15 minutes.  Reference number is : GAFY4UMT.  Is there anything else I can help with?
No, I'm good, thanks.
I'm glad I could be of assistance. Enjoy your meal!