Hello.
user
Hello, how may I assist you today?
assistant
Can you please help me to book a flight from OAK to LGA?
user
Sure, can I know your good name please?
assistant
Myself William Moore.
user
 When you are willing to travel?
assistant
I want to travel on Sept 30 and need to return on Oct 2.
user
Do you need direct flight or connecting flight?
assistant
I am comfortable with any flight.
user
May I know if you prefer to have any other comforts in your journey?
assistant
My depart time must be in the afternoon.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
Ok, not an issue. Thank you for checking.
user
Thank you for choosing us.
assistant