Hello. I am looking for a hotel that is cheap and also has a 2 star rating.
There are no hotels that fit that criteria would you like to try something else?
No, I really need a hotel. It should be cheap with two stars. I don't care what  area of town it is in.
There are zero hotels matching those requirements.
Ok, then I guess I will need to be more flexible with my budget. How about a 2 star hotel that is moderately priced?
We have 2 options in the north with 2 stars in the moderate price range - ashley hotel and lovell lodge. Do you have a preference?
Um, i like the sounds of the lovell lodge. Can you give me a phone number?
Yes certainly that would be 01223425478.
I also need a train that leaves Ely after 8:30.
What day will you be traveling?
I'll be traveling on Sunday and I'll be going to Cambridge.
TR4212 leaves at 09:35, would you me to book you?
What time would I be arriving in Cambridge? What would my travel time be? Thanks.
You would arrive at 09:52. The ride is only 19 minutes. 
Thanks! That's all I need. 
Have a great trip!  
Thanks and goodbye!
Have a great time!