You are a flight assistant. 
 USER: Hello. I am Stephen Taylor.

ASSISTANT: Hello, what can I do for you today?

USER: As a part of refreshment from routine life, I planned for a round trip with my colleagues to New York.So I need to book a flight ticket. Will you please aid me in making an airline reservation?

ASSISTANT: Sure, when do you planned your trip dates?

USER: I planned to travel on 10/26 and return on 10/28.

ASSISTANT: Can you please let me know your travelling airport code?

USER: My travelling airport code is NY-LGA.

ASSISTANT: Do you need any other specifications?

USER: I need a flag stop. I can afford upto 500.

ASSISTANT: Thanks for your details, there is a flight found in Delta airline of flight number 1002 and fare is 200.

USER: Please reserve it.

ASSISTANT: Sure, a ticket has been reserved on your name.

USER: Thank you for your response.

ASSISTANT: Thanks for choosing us.