I am looking for a train leaving on wednesday arriving by 16:00. Okay. What is your destination? I am going to be leaving from London Liverpool Street and travelling to Cambridge. Sure, I can help with that. How close to 16:00 would you like to arrive? It doesn't matter. Just tell me when it departs so I can be there on time. The best option for you is the train arriving at 15:07 and leaving at 13:39. Would you like me to book that for you? Not just yet. Could you give me the train ID, though? The train ID is TR2826. Is there any other thing i can help you with? I need a moderately priced guesthouse. how about a and b guest house? it looks lovely Sure can you book that for 7 people for 5 nights starting friday? Your booking has been made for 7 people for 5 nights starting Friday at the A & B guesthouse. Your reference number is ANHVMHU1 .