Yes, I was wondering if you could help me find a train leaving from Cambridge. 
No problem! Where will you be going to and on what day?
I'd like to go to london liverpool street on Sunday. I need to get there by 21:00.
I have train TR7713 that departs at 17:59 and arrives at 19:27. Would that work for you or would you like something earlier?
That one would be great. Can I get 2 tickets on that train, and the reference number once it's booked?
Certainly. I have now reserved two tickets for you, which you can pay for at the station. Your reference number is 13GQ9S3A.
I'm also looking for a place to stay in the centre of town that includes free parking.
What is your price range? 
I am looking for a cheap place to stay.
Can I recommend el shaddia guesthouse?
Does this location include free wifi?
Yes, El Shaddai includes free parking. Would you like to book a stay, or perhaps you would like directions?
Does the El Shaddai include free wifi?
Yes it does, would you like me to make a booking for you?
Yes. Could you make it for 2 nights/ 2 people starting on friday.
I'm sorry, that reservation wasn't available. Perhaps you could book another day, or a different length of stay?
That's okay, see if you can make the booking for one night instead. 
The booking was successful! Your reference number is 7V39SM46.
Thank you very much for all your help.
need any other help?
No. Thank you for your help. 
Great! Enjoy your stay!