You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brain Moore.

ASSISTANT: How may I aid you?

USER: I need to book a flight ticket from ORD to JFK, Can you please help me for booking?

ASSISTANT: Sure, I would be happy to help you. When are you planning to start your journey?

USER: I would like to start on 02/14.

ASSISTANT: How much should be your ticket fare?

USER: I can pay up to 200.

ASSISTANT: Let me know your arrival date to proceed further.

USER: My return date is 02/16.

ASSISTANT: Thank you for sharing the details, there is a flight available with fare 200 in economy class.

USER: Ok, proceed for booking.

ASSISTANT: Flight number is 1000 and it is of UA airline. Your reservation has been confirmed with flight number 1000.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for availing us.