Yes, I am looking for an early evening train leaving from Cambridge. Is there one available?
What day will you be travelling?
Tuesday going to bishops stortford please.
I have 10 trains for you on Tuesday. What time would you like to arrive by?
I would need to arrive by 16:30.
I have train TR8017 arriving at 16:07, is that good for you?
How much will it cost and how long will the trip take?
It is a 38 minutes drive and the cost is 10.10 pounds per person.
I also need a guesthouse to stay in. It doesn't need to have free parking or internet.
Let's narrow down our search. What price range would you like to be in?
What are my options for guesthouses? I'm not sure about the area, price, or stars. 
Most of the guesthouses are cheap or moderate. Which of those price ranges works best for you?
You choose. Let me know the area, price range, and star rating of the hotel.
I recommend the A & B Guest House in the east. It's moderately priced and 4 stars. 
That's great then, I'll talk to you sometime again. 
Would you like me to book for you before you leave?
No thats it for today thanks !
You're welcome! Have a great day!