U: Are there any trains leaving cambridge?

S: There are many trains leaving Cambridge

U: I'm trying to get to London Liverpool Street on Friday.

S: When would you like to leave?

U: I don't have a preference but I do need to arrive by 14:45.

S: Friday at 5:59 would you like me to book it for you ?

U: Yes, please book it for 3 people.

S: Great.  Your booking was successful.  The reference number is E2998ZVM.

U: Thanks! Now can you help me find an expensive restaurant to go to in the centre?

S: There are lots of expensive food options in the centre. Do you have a preferred food type?

U: Can you just suggest one for me?

S: I recommend bedouin. Do you want a reservation?

U: Yes, please reserve it for 3 people on Friday at 11:45. And I want the reference number too

S: You are booked for 3 at 11:45 on Friday at Bedouin.  Your reference number is JETYPNVX. Have fun! Anything else?

U: The restaurant has a nice view of the city?
S: One person said the view was rather dim, but two people said the view was good. I'm not sure exactly what the view consists of though.