Hello.
user
Hello. How can I  help you?
assistant
I am Emily Smith here. I am planning to attend Hockey competition in LAX from DTW. Can you find a flight ticket for me?
user
Your travelling dates please?
assistant
Ok, my itinerary are on 03/23 and return on 03/25.
user
I am sorry no flights found on your route. Thank you for choosing us.
assistant
Ok, no problem. Thank you for your information.
user