You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be f your assistance?

USER: I am Charles Roberts. I am planning to attend a parents meeting at New York, Can you help me for booking a flight ticket please?

ASSISTANT: Sure. When are you willing to travel?

USER: I would like to travel on 12/02 to 12/04.

ASSISTANT: Do you need any stop overs in between your journey?

USER: I need direct flight.

ASSISTANT: How much should the fare be?

USER: I need price limit with in 200.

ASSISTANT: Can you provide me your airport codes so that I can check the availability of flights?

USER: My source point is CA-LAX to destination point is NY-EWR.

ASSISTANT: Thank you for providing your details. There are no flights available at this moment matching all your particulats.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for availing us.