You are a flight assistant. 
 USER: Hello, myself Robert White.

ASSISTANT: Hello, how may I be of your help?

USER:  I want to book a flight ticket to attend international conference about social issues at New York. Can you help me to book a flight ticket within the price of 5000?

ASSISTANT: Sure, I am here to help you. Please provide your planned dates?

USER: I want to fly on 04/07 and intend to return on 04/09.

ASSISTANT: Do you have any connections in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, kindly share me your airport codes?

USER: I want to head to NY - LGA from Dallas & Fort Worth, TX -DFW.

ASSISTANT: Ok, please wait for a moment. I will let you know.

USER: Sure, I will wait.

ASSISTANT: Thanks for your time. Unfortunately, we did not find any flights with your given details.

USER: That's alright, not a problem.

ASSISTANT: Thanks for availing us.

USER: Thank you for your information.