Hello.
user
Hello, how may I be of your assistance?
assistant
I am Ruth Perez. I am planning to visit Oakland to enjoy the winter, can you please help me with booking a ticket?
user
Sure, I am glad to help you. Can you please share your journey details for further process?
assistant
My preferred journey dates are from 12/11 to 12/13. My airport codes are from DFW to OAK.
user
Ok, please wait a minute.
assistant
Ok.
user
Thank you for being patience, no flight found with your details.
assistant
May I know the flight details?
user
 There is no flight.
assistant
Ok,no issues.
user
Thank you for choosing us.
assistant
Thank you for your help.
user