Are there any trains going to cambridge from kings cross?
There are several. What is your departure day and time?
My departure day is Monday at 15:45.
The closest train I have leaves at 15:17 and arrives at 16:08. Would you like me to book this for you?
Yes, please. Can I get the travel time and departure time first?
Train TR9114 leaves at 15:17 and is a trip duration of 51 minutes. Do you want me to book it? 
Oh, no, I see that train will not work for me. I need to arrive by 15:45, not depart by it. I'm sorry. Could you find me another?
I have train TR3194 that departs at 13:17 and arrives at 14:08. Would that train be better for you? 
Yes, that would work better. Can you tell me how long the travel time is?
The travel time is 51 minutes.
Wonderful, thanks. I am also looking for a place to stay in the north. I'd like free wifi as well.
Of course! I have a dozen hotels that meet your needs. What type of place are you looking for? A certain price range or star rating, perhaps?
Yes, I am looking for a 4 star hotel that includes free parking and wifi.
The acorn guest house meets this criteria. Should we book something? 
Could I get the phone number and address please?
The phone is 01223353888 and the address is 154 chesterton road.
Okay great. That is all I need now.
Thank you and have a great trip!