You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me in booking a flight ticket from Chicago, ORD to Oakland, OAK?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My journey dates are from June 13 to June 15.

ASSISTANT: May I know your name please?

USER: My name is Timothy Moore.

ASSISTANT: Do you have any specifications?

USER: I need a break in between journey.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, that's not a problem.

ASSISTANT: Thank for for reaching us.

USER: Thanks for your information.