You are a flight assistant. 
 USER: Hi. Stephen Clark here.

ASSISTANT: Hello, how can I help you?

USER: Can you book a flight ticket for my airport codes that is from LAS to IAD?

ASSISTANT: May I know your desired travel dates please?

USER: The travel dates are from 08 Oct to 10 Oct.

ASSISTANT: Do you have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: May I know your class preference?

USER: That does not matter.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: The return time would be afternoon.

ASSISTANT: There is a flight available in afternoon.

USER: Sure, you can book the flight ticket.

ASSISTANT: Your ticket is booked, flight number 1012 with American Airlines.

USER: Thank you.

ASSISTANT: Thank you for opting us.