You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you at this minute?

USER: Can you please book a ticket from BOS to LAS to attend for a live concert?

ASSISTANT: Ok, I am happy to help you with that. Can I know your planned trip dates?

USER: My travelling dates are Dec 12 and Dec 14.

ASSISTANT: May I know your name?

USER: Sure, I am Michael Williams.

ASSISTANT: Do you have any other requirements?

USER: I want single connected flight.

ASSISTANT: May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Can I know your depart and return timings?

USER: I am comfortable with any time.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: The American airlines are providing a flight having a connection limit 1 and the ticket fare of 200. Can I proceed with the ticket booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed in an economy class and the flight number 1009.

USER: Thank you.

ASSISTANT: Thank you for approaching us. Have a safe journey.