Hi.
user
Hello. How may I help you?
assistant
I'm Paul Martinez.  I want to book a ticket from DTW to MSP to attend a workshop, can you help me?
user
Can I have your travelling dates?
assistant
Ok, my preferable dates of journey are 11/28 and 11/30.
user
Sorry, there is no flight for you on your route.
assistant
Ok, no problem. Thank you so much.
user
Ok, thanks for contacting us.
assistant