Hello.
user
Hello. How can I guide you today?
assistant
 I am hear to book a flight ticket for my vacation. Can you help me with it?
user
Sure, I will help you. Can you please provide me your travelling dates?
assistant
My planning dates are from 08/23 till 08/25.
user
Ok, may I know your travelling airport codes?
assistant
My airport codes are from DEN to OAK.
user
Sorry, there is no flight is found on your route.
assistant
It's ok, thank you for your information.
user
May I know your name?
assistant
My name is Anthony Allen. Welcome.
user
Thank you.
assistant