Hello.
user
Hello, how may I aid you today from my end?
assistant
I am looking for a flight from IAD to EWR, can you please help me in booking?
user
Sure, I am here to help you out. Please provide me your trip dates. May I know your name to proceed further?
assistant
My travelling dates are July 13 and July 15.
user
Thank you for providing your trip dates.
assistant
My name is Gary Perez.
user
Ok, do you connection limit?
assistant
I need a connecting flight.
user
Is there any other requirement?
assistant
I prefer economy class.
user
Sorry  Gary Perez, there is no flight in your route as per your requirement.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant