I need a train to stevenage on saturday.
The earliest train on Saturday leaves at 5:21.  When would you like to depart?
Much later, I can't leave any earlier than 16:15.
How about a 17:21 that will arrive by 18:10? 
Ok can you book it for me with a confirm number
Booking was successful, the total fee is 10.24 GBP payable at the station .
Reference number is : MQ8762HX
Thank you. Can you help me find a hotel that has 2 stars and is expensive. I would like free wifi and in the east.
Express by holiday inn cambridge meets all those requirements.  Would you like me to book a room?
I would like to book that for one person for two nights starting Thursday
I have that booked for you, is there anything else you need?
a reference number 
Sure, your reference number is O9HUGXCO.
Great, thanks for your help!
You are welcome. Can I assist with anything else today?
That is all, thanks!
thank you and enjoy your city stay!