I will be traveling to cambridge and need lodging.
Alright. Do you have a price range?
I am looking for a guesthouse with free parking located in the north that is in the moderate price range.
Is there a star range you prefer?
no, just need if for three people. Three nights, starting Wednesday. 
Okay, your hotel was booked and your reference number is PCRN539L. Is there anything else I can help you with?
I'm looking for a train leaving from bishops stortford.
Can you tell me what day you will be traveling? 
I need the train on Wednesday as well and I need it to leave after 16:45 please.
There are 4 trains what time would you like to arrive by?
I don't care what time I arrive as long as I'm leaving after 16:45.
okay traid tr2106 leaves at 17:29 and arrives at 18:07. Would you like me to book it?
Yes book it and please provide the reference number.
Okay, no problem. Will you be needing tickets for three people for the train as well? 
Yes, please book them for me.
I have you booked for 3 seats on TR2106 leaving Bishops Stortford for Cambridge on Wednesday at 19:29.  Is there anything else I can help you with today?
Yes, could you please provide me with the reference number so I have it when I arrive at the station?
Your reference number is: YQDWLHDW. Is there anything else I can do for you? 
No thank you.  That is all I needed.  Good bye.
You're welcome, have a nice day.