Hello.
user
Hello, how may I guide you today?
assistant
Yes, can you help me to book a flight ticket to DCA and my origin airport is OAK, can you help me with it?
user
Ok, could you please help me with your dates of journey?
assistant
Ok, I want to start my journey on 11/20 and return date is 11/23.
user
Sure, may I know your name please for booking purpose?
assistant
Sure, my name is David Carter.
user
Sorry Carter, there are no flights found as per your travelling details.
assistant
That's ok, I will plan some other day.
user
Thank you for contacting us.
assistant
Anyways thank you for assisting me.
user