You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be there for you?

USER: Nicholas Turner here. I want to celebrate my birthday at Las Vegas, could you book my ticket from New York?

ASSISTANT: Sure, we are rapturous to help you. When are you planning to make your journey possible?

USER: My itinerary dates are August 27 and August 29.

ASSISTANT: May I know your boarding and landing points?

USER: My genesis and terminus airport codes are EWR and LAS.

ASSISTANT: May I know at what price you are looking for ticket fare?

USER: My budget is 5000.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Ok.

ASSISTANT: We found a UA airline, flight number:1004 and the price is 200.

USER: Please book my ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for assisting me.

ASSISTANT: Thank you so much for reaching us.