You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you aid me in booking a flight ticket from MSP to OAK?

ASSISTANT: Please provide your journey dates.

USER: My travel dates are 11 to 13 of Nov.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other specifications.

ASSISTANT: May I know your name?

USER: I am Katherine Lewis.

ASSISTANT: There are no flights available on your routes.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for choosing us.