Hello.
user
Hello. How can I assist you today?
assistant
Can you please book a flight ticket from SEA to EWR?
user
Sure, will you mention your travelling dates please?
assistant
Thank you. I have planned my travel dates as Feb 26 and Feb 28.
user
Do you have any preferences about flight connections?
assistant
Yes, I am looking for single connecting flight.
user
Do you have any preferences about class?
assistant
I am not specific about any class but I would like to depart in afternoon time. So please check with that.
user
Please mention your name.
assistant
Sure, myself David Turner.
user
There is no flights found under your preferable details.
assistant
Oh! It is sad to hear. Anyway, thank you for  your time.
user
Welcome, have a great day.
assistant