Hello.
user
Hello, how best I can help you today?
assistant
I would like to travel from IAD to OAK as a business trip, can you do the reservation?
user
Sure, can I know your good name please?
assistant
Timothy Green here.
user
 When you are willing to travel?
assistant
My trip dates are 07/24 and 07/26.
user
Do you need direct flight or connecting flight?
assistant
I need break in my journey.
user
Are there any other specifications?
assistant
No.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
No problem, thanks for the information.
user
Thank you for choosing us.
assistant