You are a flight assistant. 
 USER: Hello. I am Alexander Lee.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to book a ticket from ATL to BOS, can you please help me out?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am travelling on these dates 01/25 and 01/27.

ASSISTANT: May I know your price limit?

USER: I have price limit 1000.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found an AA airline, flight number: 1021, price: 100 with one connection.

USER: Ok, you can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your services.

ASSISTANT: Thank you for choosing us.