Hello.
user
Hello.
assistant
I am Karen Hall.
user
How can I help you?
assistant
I am looking for a flight from DCA to HOU, can you help me?
user
Please provide your travel dates.
assistant
My travelling dates are 18 and 20 of June.
user
Do you have any preferences?
assistant
I would like to return in the evening with a connecting flight.
user
Sorry, I did not find any flights for you.
assistant
It's ok, not a problem, thank you.
user
Thank you for reaching us.
assistant