You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Can you please help me in booking a flight ticket to LAS from IAD?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My preferred travel dates are from Dec 26 to Dec 28.

ASSISTANT: Ok, could I have your name please?

USER: I am Jonathan Wright.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I would like to return in the evening.

ASSISTANT: The economy class with flight number 1005 of American Airline is available having fare as 100 an connection as 1, is it ok for you?

USER: Yes, you can proceed.

ASSISTANT: Ok, your reservation is confirmed. The departure time is 6:00 hours and the arrival time is 1:00 hours.

USER: Thank you.

ASSISTANT: You are welcome, have a great day.