You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Brian Parker. I planned to attend for a wedding in OAK, can you please help me to book a flight ticket from SFO?

ASSISTANT: Sure, please tell me your departure and arrival day.

USER: I planned to travel on 11/15 and 11/17. Please make sure that the connection is 0.

ASSISTANT: Ok. Sorry, there is no flight as per your planned travelling dates.

USER: Ok, not an issue. Thank you for your time.

ASSISTANT: Thank you for choosing us.