You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Justin Walker from Charlotte. I have to go to Los Angeles next week. Can you please book a flight ticket for me?

ASSISTANT: Ok Justin, may I know your trip dates for searching the flights?

USER: Thank you for your positive response, I want to take off on 12/31 and please confirm my return ticket also on 01/02.

ASSISTANT: Please provide me the airport codes which you prefer to travel.

USER: I would like to fly from CLT and destination airport is LAX.

ASSISTANT: 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: Please confirm this flight ticket for me.

ASSISTANT: Your ticket is confirmed and the flight number is 1015.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.