Hello.
user
Hello, how may I serve you?
assistant
I am looking to book a flight ticket from IAD to DCA. Can you help me for that?
user
Sure, I will help you. Please send your travelling dates.
assistant
My travelling dates are May 11 and May 13.
user
Do you have any preferences?
assistant
I need a direct flight in my journey.
user
Sorry, there is no flight available with your requirements.
assistant
That's ok, thank you for checking.
user
May I know your name?
assistant
My name is Gregory Allen.
user
Thank you for reaching us.
assistant