You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me to book a flight from LAS to PHL?

ASSISTANT: Sure, please share me your trip dates.

USER: My travel dates are Oct 12 to 14.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer connecting flight.

ASSISTANT:  If you can help me with your name, I can begin looking up for the availability of flights.

USER: I am Nicholas Lewis.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No other specifications.

ASSISTANT: Thank you for waiting and we have found a flight in an economy class with 1 connection in American Airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: Please proceed.

ASSISTANT: Your booking is done with flight number 1011.

USER: Thank you.

ASSISTANT: Thank you for choosing us.