Hello.
user
Hello, how may I support you today?
assistant
I am planning to attend music concert at OAK, can you please help me with booking a flight ticket from EWR?
user
Sure, please share me your trip dates.
assistant
Sure, I would like to take off  on July 27 and return on July 29.
user
Is there any class preferences for you?
assistant
I would prefer business class.
user
 Do you need direct flight or connecting flight?
assistant
I need a flight with 1 connection.
user
For booking, we need your good name. Please mention it.
assistant
My name is Charles Moore.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
Ok, no issues. Thank you for checking.
user
Thank you for opting us.
assistant