You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I benefit you?

USER: I am Thomas Moore. I am planning to take my children's to Disneyland in Los Angeles, could you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know when do you want to travel?

USER: My departure is 05/01 and return on 05/03.

ASSISTANT: Please provide me your airport codes.

USER: My source is Oakland, CA - OAK and destination code is CA - LAX.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: There is an Delta airline with flight number 1003 is going on your way and the fare is 200. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.