Hello.
user
Hello.
assistant
I am William Miller.
user
How can I help you?
assistant
I would like to visit an arts expo at Washington. So, please reserve me a flight ticket from OAK to reach IAD.
user
Let me know your travel dates.
assistant
My planned journey dates are Dec 21 and Dec 23.
user
Do you have any preference?
assistant
My return time should be morning.
user
Sorry, no flights found for your travelling dates.
assistant
Ok, not an issue. Thank you for the information.
user
Thank you.
assistant