You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Carolyn Jackson here, planning to setup a own business at Denver. Going to study the market condition there, can you book 1 ticket for me?

ASSISTANT: Sure, may I know your journey dates please?

USER: I am planning to start on 03/15 and return on 03/17.

ASSISTANT: Ok, may I know your unique airport codes please?

USER: My nearest airports are BOS and DEN.

ASSISTANT: Ok, hold on for a moment.

USER: Ensure that price limit is 500.

ASSISTANT: I found a flight for you with AA airline and it costs you 100. Shall I proceed?

USER: Please proceed if its connection is 1.

ASSISTANT: Your ticket has been booked with 1002 flight number.

USER: Thank you for booking instantly.

ASSISTANT: Thank you for choosing us, have a safe flight.

USER: You are welcome.