i need a train  from stansted airport  to cambridge
What day and approximately what time will you be traveling to Cambridge?
I need to get there by 20:30 on Wednesday.
You could grab the TR3828 leaving stansted airport it will get you there by 09:52.
Can you get me there a little bit earlier?
How about 05:24 that is the earliest, how many tickets please? 
There will be 8 of us.
Okay, I have you booked for train TR5910. The total fee is 80.8 GDP.  Is there anything more I can do for you?
I also need a guesthouse for 8 and needs to be a 4 star
There are 5 different options that fit that criteria, 2 in the east, 2 in the north, and one in the city centre. Would you like to hear more about these?
Which of those have free wifi?
There are actually 18 different options to choose from. Is there a certain part of the city you'd like to stay in, or a particular price point?
Any price point is fine as long as it is 4 star and has free parking.
How about Allenbell? 
Sure, Can I have a reference Number?
I need some more information first. What day will you be checking in on, and how many days will you be staying for? And how many people?
Actually, I change my mind. I will take care of the booking later. Thanks for your help. Goodbye. 
Thank you contacting us, it was a pleasure to help. If you need any assistance feel free to contact us again, goodbye.