You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can you please assist me for booking from DFW to OAK?

ASSISTANT: Sure, May I know the travelling dates?

USER: My  planned dates are on Feb 23 and 25.

ASSISTANT: Do you have any connection limit?

USER: I need a stopover.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Nicole Green here.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.