You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in booking a flight ticket from ORD to SFO?

ASSISTANT: Sure, on which dates you would like to travel?

USER: I want to travel on 12/20, and return on 12/22.

ASSISTANT: May I know your good name please?

USER: I am Christopher Smith.

ASSISTANT: Do you have any connection limit?

USER: I need a break in my journey.

ASSISTANT: Let me know your other preferences to be met?

USER: I want to depart in the evening time, and return in afternoon time.

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

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.