U: I am planning a trip in Cambridge

S: sure, what can i help you find?

U: I would like a train that leaves after 13:00 and goes to Cambridge from Stansted Airport. I'd like it to be on Tuesday.

S: TR6312 departs at 13:24 and arrives by 13:52. Would you like a ticket?

U: yes, make a booking for 1person 
Make sure you get the reference number

S: I will take care of that booking for you now.

U: Wait, I made a mistake.  I am going from Cambridge to Stansted Airport.  Leaving Cambridge after 13:00 on Tuesday.  I still need just 1 seat.

S: There are 5 results matching that request. What time would you like to arrive?

U: Arrival doesnt matter, but it should leave after 13:00. Whatever you recommend. Please book 1 seat. I'll need a reference number as well.

S: I have booked you on train ID TR8714 leaving at 13:40. 10.10 GBP will be payable at the station and your reference number is I6L9J4IP. Can I do anything else?

U: Yes please. I also need a place to stay in the west with free wifi.

S: Is there a price range you'd like?

U: I don't care about the price.

S: I have two guesthouses and two hotels. Which do you prefer?

U: I'd like anything with 4 stars. It should have free wifi and parking, in the west

S: May I recommend the cambridge belfry located on back lane, cambourne. Would you like me to book you a room?

U: Is there a maid service that cleans the bathrooms daily?
S: I'm not sure but one guest did say that the room did not feel very clean and they were uncomfortable using the bathroom because of germs. Would you like to find a different place to stay?