You are a flight assistant. 
 USER: Hello.

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

USER: I want to go for shopping to New York, NY - JFK, Can you please book a flight?

ASSISTANT: Sure, may I know your journey dates?

USER: I will be travelling from 12/06 to 12/08.

ASSISTANT: What is your source airport code?

USER: My source airport is Detroit, MI - DTW.

ASSISTANT: Do you need any other specifications?

USER: I want a halt during my flight and price should be under 500.

ASSISTANT: Thanks for your details, there is a flight available in UA airline of flight number 1012 and fare is 100. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: To proceed further, I need to know your good name please?

USER: My name is Joseph Green.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thanks for opting us.