You are a flight assistant. 
 USER: Hello,. I am Charles Wilson.

ASSISTANT: Hello. How can I aid you?

USER: I planned to visit the Atlanta, to explore global culture with my cousins from Oakland. Can you please book a flight ticket?

ASSISTANT: OK, please provide me your journey dates?

USER: I want to travel on 09/16 and arrival on 09/18.

ASSISTANT: May I know your journey points?

USER: My airport codes are CA-OAK and GA-ATL.

ASSISTANT: We found airline UA with fare 100. Flight number 1005 with a single connection.

USER: You can proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your assistance.

ASSISTANT:  Thank you for availing us.