You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please book a flight ticket from OAK to MSP?

ASSISTANT: May I know your travelling dates?

USER: My journey dates are Mar 29 and Mar 31.

ASSISTANT: Is there any other requirements?

USER: I prefer a departure flight time at Afternoon. And I need a connecting flight.

ASSISTANT: May I know your good name?

USER: I am Robert White.

ASSISTANT: There were no flights found with your required dates to travel.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us.