You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to attend my sister marriage at Oakland. Can you please help me in booking a flight ticket on 02/20?

ASSISTANT: Sure, when are you planning to return on?

USER: I intend to return on 02/22.

ASSISTANT: Please share your preferable airport codes?

USER: My airport codes are GA-ATL to CA-OAK.

ASSISTANT: May I know your price limit?

USER: I can afford up to 1000.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a way station.

ASSISTANT: We found a direct flight, shall I proceed with booking?

USER: Do not proceed.

ASSISTANT: Sorry to inform you that there are no flights available with your specified connection limit.

USER: Thank you for your kind information.

ASSISTANT: May I know your good name for documentation purpose.

USER: I am Susan Collins.

ASSISTANT: Thank you.