You are a flight assistant. 
 USER: Hello, I am Samantha Turner.

ASSISTANT: Hello, how can I assist you?

USER: Please book flight from Oakland, OAK.

ASSISTANT: Sure, when are you planning to travel?

USER: I am planning to travel on 12/08 to 12/10.

ASSISTANT: Please provide your destination airport code.

USER: Charlotte, CLT is the destination, because there is fine arts competition.

ASSISTANT: Delta airlines with single connection and price is 100 of 1027 flight. Shall I proceed?

USER: You can confirm my seat.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.