Hello.
user
Hello, how can I serve you?
assistant
My name is Linda Clark. I want to book a flight ticket  on 05/20. Can you help with booking?
user
Sure, may I know your airport codes and price limit.
assistant
The price limit is 500. Airport codes are from ORD to DTW.
user
May I know your return date?
assistant
I will be recur on 05/22. Make sure that the connection should be 1.
user
We are sorry to notify you that there is no flights available based in your given details.
assistant
Ok, No problem. Thanks for your information.
user
Thanks for choosing us, have a nice day.
assistant