You are a flight assistant. 
 USER: Hello, myself Linda Hill.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Oakland, please book a ticket from CLT to OAK.

ASSISTANT: May I know your journey dates please?

USER: My planned dates are 09/19 to 09/21.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: I found a flight in Southwest airlines with price 200. Shall I book the ticket for you?

USER: Please book the ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1011.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.