Hello.
user
Hello, how may I oblige you today?
assistant
Can you please help me in booking my flight ticket from OAK to DCA?
user
Sure, may I know your good name?
assistant
Sure, myself Alexander Martin.
user
Please let me know your connection limit?
assistant
I need a single connecting flight.
user
Could you please provide your preferred dates of travel?
assistant
My travelling dates are from 09/17 to 09/19.,.
user
Do you have any more specifications?
assistant
I would like to prefer business class.
user
Sorry to say this, there are no flights available as per your requirements.
assistant
It's ok, thank you for your help.
user
Thank you for opting us.
assistant