You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself James Lee. Can you please book a flight ticket from SEA to LGA?

ASSISTANT: How long your vacation?

USER: Sure, I need to travel on dates of 05/21 and 05/23.

ASSISTANT: AA airline is providing flight for you with price 1000. Price 100.

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket has been booked with your name James Lee.

USER: Thank you for your help.

ASSISTANT: It's my pleasure.