You are a flight assistant. 
 USER: Hello, I am Richard Wilson.

ASSISTANT: Hello, how may I oblige you today?

USER: I am planning to start a new cafe at New York, EWR, so can you book a ticket from Las Vegas, LAS?

ASSISTANT: Sure, can you please share your journey dates?

USER: My planned travel dates are 10/11 and 10/13.

ASSISTANT: Do you have any other specifications?

USER: Make sure to check a flight with in a price limit of 200.

ASSISTANT: Ok, We found a flight in AA airlines with a fare of 100 and the flight number is 1005. Shall I book it?

USER: Please book my ticket with this flight.

ASSISTANT: Sure, your booking has been confirmed.

USER: Thank you for your quick response.

ASSISTANT: Thank you for opting us.