You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may can I provide service to you?

USER: I am Eric Hernandez, I want to book a flight on 10/13 and returning ticket on 10/15. Can you help me to book a flight to Las Vegas?

ASSISTANT: Sure, can you please provide your airport codes?

USER: My source point is NY-LGA and destination is NV-LAS.

ASSISTANT: Do you need a stopover in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: May I know the price that you can afford for a ticket?

USER: My price limit is 200.

ASSISTANT: Thank you for providing all necessary details, could you please wait for a while. I will check the availability and get back to you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your preferable dates.

USER: Thank you.

ASSISTANT: Thank you for availing us.