Hi.
user
Hello. How may I help you?
assistant
I am Linda Adams. Can you help me to book a flight from DCA to EWR?
user
Sure, I am obliged to help you in that plane ticket booking. Can you please share your moving dates for better searching of flight?
assistant
My travelling dates are 06/03 and 06/05.
user
  Is there any another specifications on your trip, so that I can arrange like that only.
assistant
I need a connecting flight from DCA.
user
Sorry to say, there is no flight found on your route to book your ticket.
assistant
No issues, thank you for your time.
user
Welcome, have a good day.
assistant