I am looking for a train that departs from Cambridge. It needs to leave after 15:00.
There are many trains that leave from Cambridge, where are you going and what day would you like to leave?
I need to go to stansted airport and I want to leave on Monday
Ok, there are 9 different trains, did you have an arrival time you needed?
I need to leave after 15:00.
Sure. TR7095 is leaving at 15:40. The price is 10.10 pounds and duration 28 minutes. It'll arive at 16:08. Should we book? 
Yes please.  I also need a place to stay, preferably in the west part of town.
In the west, we have four fine lodging establishments. Do you prefer a guesthouse or a hotel? 
A guesthouse please that is not too expensive.
Finches Bed and Breakfast is listed as cheap, and it has 4 stars. Hobson's House is moderately priced, with 3 stars.
Is Finches located in the west and if so, can I please get the postcode?
Yes it is, the post code is cb30nd.
Thank you. That is everything I needed today.
You are welcome and I am glad we could be of help.