Hello.
user
Hello, how may I support you today?
assistant
Can you please find a flight for me to travel from DCA to BOS?
user
Sure, please share me your trip dates.
assistant
I will start on June 4th and my return will on June 6th.
user
Is there any class preferences for you?
assistant
I prefer to fly in business class.
user
Do you need direct flight or connecting flight?
assistant
I am fine with a connecting flight.
user
May I know your airline preferences?
assistant
I don't have any.
user
Please mention your good name.
assistant
My name is Eric Harris.
user
 Sorry to say that, there are no flights available on the routes of your journey.
assistant
No problem, thank you anyway.
user
Thank you for communicating with us.
assistant