You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I want to enjoy my holiday in Las Vegas, so please book my ticket from JFK to LAS.

ASSISTANT: Sure, I am here to help you for this. Could you please share me your travel dates?

USER: My itinerary dates are Mar 21 and Mar 23.

ASSISTANT: Do you prefer any airline?

USER: I prefer normal-cost airlines.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I need a connecting flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: As per your criteria, I found a flight with American Airlines and the ticket fare is 100. Shall I proceed for this?

USER: Please proceed.

ASSISTANT: For reserving the ticket. May I know your name please?

USER: Rebecca Evans here.

ASSISTANT: Your ticket is reserved in economy class with the flight-1009. Your depart time is 8:00 AM, and again your arrival time is 15:00 PM.

USER: Thank you.

ASSISTANT: Thank you very much for approaching our agency.