I'm looking for a cheap guesthouse.
great, i have 9 options for you.
I really prefer to stay in the west part of town. Do you happen to have anything in that area? 
How about Finches Bed and Breakfast at 144 Thornton Road?
Great. I need it for 7 for 5 nights.
Before I can book it I need to know what day you will be staying?
I will be starting  from Tuesday.
All set. Your reference number is ATMXXNQI.
I also need a train for Tuesday that leaves London Liverpool Street and arrives in Cambridge by 16:15.
I have train TR2715 that leaves at 7:39 and arrives at 9:07. 
Do you have a train less early? One that arrives around 16:15?
TR1395 arrives at 15:07. 
Thank you for your help.
Would you like us to book a ticket for you? 
No, that's all I needed. Thanks!
Would you like me to book anything else or provide anymore info?
No that is all, thank you!
Alright, have a lovely day!
great day and thanks for helping
Thanks! You're welcome, have a great day!