You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you book a flight ticket from OAK to MSP?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I will start on June, 16 and return on June, 18.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I need to depart at evening time.

ASSISTANT: May I know your name please?

USER: Robert Wright here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.