You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

USER: Aid me in booing a flight ticket from OAK to MSP.

ASSISTANT: Sure, I will help you with that. Please, share me your journey dates.

USER: My desired dates are in between Dec 18 and Dec 20.

ASSISTANT: Do you have any limit on number of connections?

USER: Connection flight is required.

ASSISTANT: May I know about your other requirements?

USER: I don't have any other specifications.

ASSISTANT: Let me know your name to proceed further for documentation purpose.

USER: I am Ashley Campbell.

ASSISTANT: Sorry to say that, we have not found any flights running on your desired routes.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Thanks for checking.