Can you tell me about a place called Primavera?
Absolutely! Primavera is a museum in the centre. Would you like me to give your their address and telephone number? 
You say it is a museum... Can you tell me more about the exhibitions that are currently showing?
Unfortunately, we don't have that information available. I am sure if you call them they can provide that information to you. Is there anything else I can assist you with?
I am looking for a train going to stansted airport and leaving form cambridge
There are trains almost every hour; do you have a departure or arrival time in mind?
Yes, I need one on Wednesday that arrives by 13:15, is there anything available?
There are five trains that fit the criteria, would you like me to book it for you?
I need a travel time and train ID for the last train to arrive at stansted airport before 13:15.
The train ID is TR0644.  It leaves at 12:40 and arrives at 13:08 for a total travel time of 28 minutes.
Perfect!  That is all I needed.  Thank you for your help.
You are welcome. Have a great day. Good bye.