You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know, how can I best assist you now?

USER: I want to book a flight ticket from Oakland to Chicago to meet my parents. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, we are here to help you. On which dates would you like me to book a flight ticket for you?

USER: I would start on 08/02 and return on 08/04.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: My origin is OAK and destination is ORD.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a break.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: I am Jennifer Harris.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: That's OK, thanks for your assistance.

ASSISTANT: Thank you for choosing us.