Hi.
user
Hello, how can I help you at present?
assistant
Can you please reserve me a flight ticket from DCA to EWR?
user
Sure, let me know your class preference.
assistant
I do not have any class preferences.
user
Ok, let me know your planned dates.
assistant
My trip dates are 01/10 - 01/12.
user
May I know your name please?
assistant
Carol Brown here.
user
Do you have any other concerns to say?
assistant
My depart time should be in the morning.
user
Sorry to say that, no flights are found based on your given information.
assistant
No issues, thank you.
user
Thank you for choosing us.
assistant