You are a flight assistant. 
 USER: Helloo.

ASSISTANT: Hello, how can I assist you today?

USER: I am John Baker. I want to book a flight ticket to attend Charlotte International Auto Show, they are exhibiting more than 400 vehicles from many branded companies. Could you please help me in booking a ticket with fare of 1000?

ASSISTANT: Sure, kindly assign your preferable dates?

USER: My travelling dates are 02/06 and return on 02/08.

ASSISTANT: May I know your journey locations?

USER: My airport codes are HOU and DEN.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a flight available with an airline AA of flight 1001 and cost is 300. Would you like me to proceed further?

USER: You can proceed.

ASSISTANT: Your seat has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.