You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Kathleen Collins.

ASSISTANT: Collins, what type of service you are looking for?

USER: I am planning to travel from MSP to JFK to attend live concert at New York, can you please help me with booking a flight ticket?

ASSISTANT: Sure Kathleen, can I know the trip dates please?

USER: Sure, I would like to take off on 04/04 and return back on 04/06.

ASSISTANT: Give me a moment I will get back to you.

USER: Sure, make sure that the price limit should not exceed 500.

ASSISTANT: Sorry, there are no flights for you as per your request.

USER: Ok, no issues. I will try another way to complete my trip.

ASSISTANT: Thank you for choosing our agency.

USER: Thank you for checking.

ASSISTANT: You are welcome.