Hello, I'd like some information on a train departing from stansted airport.
Sure, I can help you with that! What information are you looking for?
it should depart stansted airport and arrive at cambridge by 8:30 on wednesday. 
There are 3 different options that fit your request. Which time would you like to depart, 05:24, 06:24, or 07:24?
I need to depart whichever train gets me to Cambridge closest to 08:30 am.
the TR0196 arrives by 7:52. do you want to purchase a ticket?
yes and I need a reference number please thank you
How many tickets will you need?
Nevermind.  I'm going to just purchase my ticket at the station.  Can you check for Swedish restaurant for me?
I'm sorry but we don't have any restaurants that serve Swedish food in the area. Is there another type of food you would like to try?
how about one with italian food?
 recommend pizza hut city centre. it a very good joint.
Sounds like a plan. Can you book me a table for 6 people please
Sure thing what day and time would you like to go?
it will be for wednesday, 6 people at 12:00. 
Booking was successful. The table will be reserved for 15 minutes.Reference number is : 63OVPORG.
Thanks for your help.  That is all I will be needing for today.  Bye.
You're welcome, have a great day!