I'm looking for a hotel that includes free wifi and free parking. 
There are definitely lots of places that provide complimentary parking and wifi. Do you prefer any particular part of town, or are you looking for a certain price range?
I would like a hotel in the centre and it should be in the cheap price range.
I don't have any hotels that meet your criteria but I do have two guesthouses available? Would that be okay?
Yes, that would be fine. What are the names of the two guesthouses?
One id alexander bed and breakfast and the other is el shaddai.
What star ratings are they?
Alexander bed and breakfast is 4 stars and el shaddai is 0 stars. 
Okay may I please have the phone number for Alexander bed and breakfast?
Of course! The telephone number for Alexander Bed and Breakfast is 01223525725.
Thank you! I'm also looking for a train for saturday. 
Okay. Would you like to narrow it down by departure site, destination, or arrival time?
I need to leave Cambridge on Saturday, please.
OK. Where are you heading, and at what time?
i am going to ely and it should leave by 18:00
The earliest train leaves at 19:50 and the last one leaves at 23:50. Which one could you like to take?
Please pick one that meets my requirements. 
Then, that would be TR7349 departing at 19:50 and arriving in Ely by 20:07. Do you need any tickets?
No, Make sure you get travel time, price, and train ID
Train ID is the one that was referenced earlier, price is 3.52 pounds per person, it is only a 17 minute trip.  Is there anything else that i can do?
No thank you. 
Do you need any further assistance with anything else?
No thank you that will be all
You are welcome. Thank you for contacting Cambridge TownInfo centre. Goodbye.