You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit my head office at Las Vegas, please help me to book a ticket from JFK to LAS.

ASSISTANT: Sure, may I know your preferable dates?

USER: Yes, I want to travel on 06/16 and 06/18.

ASSISTANT: Please wait for a moment. As per your request there is a flight available for you from Hawaiian airlines with number 1027.

USER: Make sure that my ticket fare should not exceed 500.

ASSISTANT: Shall I confirm your booking?

USER: Ok, please proceed for booking.

ASSISTANT: May I know your good name please?

USER: I am Robert Wright.

ASSISTANT: Your ticket is booked Robert.

USER: Thank you for booking.