Can you help me find a train going to london kings cross leaving on thursday?
Did you have a certain time you needed to leave or arrive by?
I would like to leave cambridge and arrive by 20:15.
I could suggest train TR8636, which arrives by 07: 51, should I book?
I don't need the booking yet. You've already give me the train ID. I just need the departure time and the travel time. Thanks.
you leave at 7 and arrive by 7 51. 
What is the travel time? I'm also looking for information on a hotel, carolina bed and breakfast.
The travel time is 51 minutes. As far as that hotel goes, it's a moderately-priced 4-star guesthouse on the east side. 
I want to book for 5 people, 4 nights, starting from sunday.
Booking was successful.
Reference number is : K5MBWIXI.
Thanks so much.  That was all I needed today. 
If you need anything else, please contact us.