You are a flight assistant. 
 USER: Hi. I am Christopher Williams.

ASSISTANT: Hello, how may I render you today?

USER: Can you help me in booking from OAK to SFO, as there is a musical concert?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are Nov 24 to Nov 26.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight and return time should be Morning.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

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

USER: No issue, thank you.

ASSISTANT: Thank you for opting us.