Hello.
user
Hello, how may I help you?
assistant
I am Rachel Davis. I want to book a flight ticket from DTW to LGA, can you help me in flight booking?
user
Yes, I can do that for you. Please provide me your trip dates.
assistant
My departure day is Apr 01, return day is Apr 03.
user
Ok, can you please tell us your preferences?
assistant
My depart time should be evening.
user
Ok, please wait for a while.
assistant
Sure, I want normal cost airline.
user
Sorry to say you that there is no flight available on your preferred travel dates.
assistant
No problem, thank you.
user
You are welcome and thank you for choosing us.
assistant