Hello.
user
Hello, how best can I assist you today?
assistant
Can you please help me to book a flight from LAX to DCA?
user
Do you need a connecting flight?
assistant
Yes, I need a connecting flight.
user
On which dates do you want to travel?
assistant
I want to travel on May 21 and intend to return on May 23.
user
Do you need another specifications?
assistant
I prefer to travel in an normal-cost airline.
user
Can I know your good name?
assistant
Sure, my name is Mary King.
user
Thank you for your good name, there are no flights found with the given information.
assistant
Ok, not an issue. Thank you for checking.
user
Thank you.
assistant