Hello.
user
Hello, How can I help you?
assistant
I am planning to celebrate my birthday in Oakland, so please book a flight ticket from DEN to OAK.
user
Sure, May I know your travelling dates?
assistant
My departure day is Nov 24, return day is Nov 26.
user
Do you have any connection limit?
assistant
I need a connecting flight.
user
May I know your name?
assistant
My name is Nancy Nelson.
user
Sorry, there are no flights found with your data.
assistant
No problem, thank you.
user
Thank you.
assistant