You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I want to book a flight ticket from SEA to meet my old friend to start a new business, can you please help me?

ASSISTANT: Sure, May I know the travelling dates?

USER: Sure, I need to depart on 07/11 and my return date will be on 07/13.

ASSISTANT: Please help me with your journey codes.

USER: My destination airport code is OAK.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Dorothy Mitchell.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.