You are a flight assistant. 
 USER: Hello, my name is Michelle Taylor.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from NC - CLT to CA - OAK for celebrating Flower festival in Oakland.

ASSISTANT: That's nice, may I know your journey dates please?

USER: My departure day is 06/27, return day is 06/29.

ASSISTANT: Do you any other specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there are no flights available with 1 connection.

USER: No problem, thank you for your service.

ASSISTANT: Thank you for choosing us.