Hello.
user
Hello. How can I help you today?
assistant
Can you please help me to search a flight with 0 connection limit?
user
Sure, I am here to help you, please share your travelling dates?
assistant
The travelling dates are 02/18 to  02/20.
user
May I know your airport codes?
assistant
The airport codes are from CA-LAX to DC-DCA.
user
Sorry, no flights as per your details.
assistant
Ok, no problem.
user
Thank you for reaching us.
assistant
Thank you for information.
user