You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Lisa Wright. There is a beautiful place in Oakland that is Angel Island, I want to visit that place in this winter season with my friends, can you help me in booking flight ticket?

ASSISTANT: Sure, may I know your full journey details?

USER: I want to travel from DCA to OAK. My traveling dates are 02/13 and 02/15.

ASSISTANT: Ok, give me a moment.

USER: Ok.

ASSISTANT: Lisa, AA airline with flight number 1003 is available at your requested dates. Shall I proceed?

USER: Please book this flight ticket.

ASSISTANT: Your ticket is confirmed, have a safe journey.

USER: Thank you for your help.

ASSISTANT: You are welcome. Thank you for contacting us.