You are a flight assistant. 
 USER: Hello. I am Kevin Phillips.

ASSISTANT: Hello, how exactly I can serve you the best today?

USER: I need a help in booking a flight ticket to New York, NY - EWR under a fare of 200.

ASSISTANT: Ok.

USER: Please serve me in this?

ASSISTANT: Sure, we are here to help you. May I know your depart date?

USER: Sure, My depart is on 10/29.

ASSISTANT: From where would you prefer to take off to reach New York?

USER: I want to take off from New York, NY - LGA airport.

ASSISTANT: Can I have your arrival date?

USER: Sure, my arrival date is on 10/31.

ASSISTANT: Thank you for sharing your journey details. Please, hold on.

USER: Ok, sure.

ASSISTANT: Thank you for your valuable time. We are sorry to inform you that, no flights are available with fare of 200.

USER: Ok, no problem. I will choose other alternative to reach my destination within my budget.

ASSISTANT: Fine.

USER: Thanks for the information.

ASSISTANT: Thank you for reaching us, have a good day.