Hello, I am Melissa Hill.
user
Hello. How may I aid you today?
assistant
Could you please book a flight ticket to DTW from LAX with a connecting flight?
user
 If you provide your planned departure and return dates of travelling then it is easy to find a exact flight for you.
assistant
I want to depart on July 5th and return on July 7th.
user
Please wait for a couple of minutes, I will bring a best flight in your planned route.
assistant
Sure.
user
Sorry, there is no flight running on your route.
assistant
Not a problem, thank you for the information.
user
Thanks for choosing us, have a good day.
assistant