Can you find me a train leaving from London Liverpool Street? Of course! When would you like to travel? I'd like to leave cambridge after 18:15 on Wednesday. No train at that time do you want to change the time to 09:39? That is fine. TR2823 is leaving london liverpool street to cambridge at 19:39, would you like me to book you passage? Yes, please. I'll be needing tickets for 3 people. I have booked 3 tickets for you at on TR2823. The total fee will be 49.8GBP. I also need the reference number. Ah, yes. Your reference number is D7RN1KYW . Is there anything else I can do for you? There is a restaurant called Eraina, I would like to book a table for 3 at 21:00? Which day would you like the reservation for? For Wednesday, please. It is booked up then, another time perhaps? How about 20:00? You are booked. Remember the restaurant will only hold the table for 15 minutes. Your reference number is KFYPO6NQ . Can I assist you with anything else?