You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: Can you please book me a flight ticket from DCA to OAK to meet my family?

ASSISTANT: Sure, Can you please share your scheduled dates?

USER: I have planned to travel on Jan 09th and return on Jan 11th.

ASSISTANT: Ok, Do you need any stopover?

USER: I like one connecting flight.

ASSISTANT: May I know your name please?

USER: Brenda Phillips.

ASSISTANT: Do you have any other specifications?

USER: I like to travel in business class.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, we did not find any flights running to that location due to bad weather conditions.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing our service.