You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to travel from LAS to ORD, can you help me in doing that?

ASSISTANT: Sure, please share me your trip dates.

USER: My journey dates are Apr 16 to 18.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

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

USER: I am John Young.

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

USER: I want to depart in afternoon time.

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

USER: Ok, please proceed.

ASSISTANT: Your booking is done with flight number 1005.

USER: Thank you.

ASSISTANT: Thank you for availing us.