Hello.
user
Hello.
assistant
I am Andrew Scott.
user
Andrew Scott, how can I aid you today?
assistant
Can  you please book a flight ticket from OAK to DCA?
user
Sure, I am here to help you. May I know your travel dates please?
assistant
Thank you. I have planned my travel dates as Sept 04 and Sept 06.
user
Ok, do you have any requirements?
assistant
I would like to return in afternoon time so please make sure that.
user
Ok, hold on for a moment. Let me check the best available flight for you.
assistant
Sure, take your time.
user
Sorry Andrew Scott, there are no flights available on your requested dates.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Welcome, thank you for choosing us. Have a great day.
assistant
Most welcome.
user