Hello.
user
Hello. How can I help you?
assistant
Jason James here. I want to take part in Boston marathon, so please book my ticket from DTW to BOS.
user
Sure, May I know your travelling dates?
assistant
My trip dates are Nov 17 and Nov 19.
user
Do you have any class preference?
assistant
I prefer business class.
user
Do you have any other preferences?
assistant
I want to depart in the afternoon.
user
Thanks for your details, there are no flights found on your data.
assistant
No problem, thank you.
user
Thank you.
assistant