I'd like a train from Cambridge, please.
I can help you with that.  Where will you be traveling to?
I will be traveling to ely.
there is quite a number. which day do you want to travel?
I would like to go on thursday leaving after 19:45.
The TR1709 leaves at 5:50,would you like me to book it ?
No, I need to find a train that leaves after 19:45 on Thursday. Can you help me with that?
I have TR7979 that leaves Thursday at 19:50 and arrives at 20:07. Would you like me to book it?
Yes, for 6 please. 
Your reservation is complete, with reference number 42PK9GM4
I would also like to look for a multo sports center in town too. 
There is just one. It is the cherry hinton village centre in the east. 
Oh, well I really wanted to visit the centre. Maybe you could find me a park instead? One in the centre of town?
cambridge university botanic gardens is the only park in the centre of town.  Would you like any further info on the park or Cambridge? 
Do you have their phone number?
Yes, their phone is 01223336265.  Is there anything else you need assistance with today?
No, thank you for all your help. I believe you helped with everything I needed today, goodbye. 
Thank you and enjoy your stay.