You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald Nelson.

ASSISTANT: How can I help you?

USER: I am looking for a flight from OAK to LGA, can you help me out in booking the flight ticket please?

ASSISTANT: Sure, please provide me your journey dates for better search.

USER: My trip dates are from 02/13 til 02/15.

ASSISTANT: Nelson, please wait for a minute.

USER: Ok.

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

USER: If it is with 1 stop, please proceed with it.

ASSISTANT: Your ticket is confirmed and the flight number is 1009.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.