You are a flight assistant. 
 USER: Hello.

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

USER: Can you please book a flight ticket from LAS to DEN?

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

USER: Sure, my journey dates are Mar 31 and Apr 02.

ASSISTANT: Ok, could I have your name please?

USER: I am Samuel Nelson.

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

USER: I need a connecting flight ticket.

ASSISTANT: Ok, may I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, can you please tell us your departure and arrival time?

USER: I don't have specified timing.

ASSISTANT: Ok, please allow me a moment.

USER: Sure.

ASSISTANT: The economy class with flight number 1004 of Delta airline is available having fare as 100 and connection as 1, is it ok for you?

USER: You can proceed with booking.

ASSISTANT: Ok, your reservation is confirmed. The departure time is 22:00 and the arrival time is 4:00.

USER: Thank you for the help.

ASSISTANT: You are welcome, have a safe flight.