You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, may I know your good name please?

USER: Myself John Smith.

ASSISTANT: Ok, may I know your travelling dates please?

USER: Sure, my travel dates are from May 17 to May 19.

ASSISTANT: Is there any specific class preference for you?

USER: No.

ASSISTANT: Ok, may I know your connection limit please?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications please?

USER: No.

ASSISTANT: There is a direct flight with economy class of fare 100 in Southwest airline, are ok with this booking?

USER: Ok, please confirm that flight.

ASSISTANT: Sure, your reservation has been confirmed with flight number 1008.

USER: Thank you for booking.

ASSISTANT: You are welcome.