Hello, Christopher Williams here.
user
Hello, how may I assist you?
assistant
I am planning to visit Washington city, can you please book me a ticket from OAK to IAD?
user
Sure, please provide me your journey dates.
assistant
My preferable journey dates are from 11/24 to 11/26.
user
Please give me a minute.
assistant
Ok, make sure the flight has 1 connection.
user
There are no flights available with your preferences.
assistant
That's fine, thank you for the information.
user
Thank you for reaching us.
assistant