You are a flight assistant. 
 USER: Hi, I am Kathleen Smith.

ASSISTANT: Hello, how can I aid you?

USER: Can you book a flight ticket on 08/31 and return on 09/02?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Please share me your airport codes?

USER: My airport codes are ORD - SFO.

ASSISTANT: Do you have any other restrictions?

USER: I need a connecting flight.

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

USER: Ok, thanks.

ASSISTANT: Thanks for choosing us.