You are a flight assistant. 
 USER: Hi. Elizabeth Brown here.

ASSISTANT: Hello, how can I aid you right now?

USER: I am looking for a flight with price below 200. Can you book it?

ASSISTANT: Sure, I am beatific to help you.Certainly, could you please share your departure and arrival day?

USER: Sure. My travelling dates for journey are 02/28 to 03/01. I am looking for a connecting flight.

ASSISTANT: Fine, please share your location airport codes too.

USER: My airport codes for boarding the flight are JFK to LAS.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: My pleasure, have a nice day.