You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a ticket from SEA to OAK.

ASSISTANT: Sure, may I know the travelling dates?

USER: Departure is on Sept, 25 and return date is Sept, 27.

ASSISTANT: Do you have any connection limit?

USER: I would be comfortable with single stop over.

ASSISTANT: Are there any other specifications?

USER: I prefer business class.

ASSISTANT: May I know your name?

USER: I am Ronald Anderson.

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

USER: Thank you.

ASSISTANT: Thank you for opting us.