You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Anthony Scott here.

ASSISTANT: In what way can I be at your service today?

USER: I need a reservation from New York to Atlanta for meeting my children, they study in boarding school.Can you book a flight for my journey?

ASSISTANT: Sure, may I know your airport codes please?

USER: My journey will began from LGA and my destination is ATL for this trip.

ASSISTANT: Ok, can you help me providing your journey dates?

USER: Planned dates for my trip will be from 05/14 to 05/16.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Make sure if the tickets cost will be within 500 only.

ASSISTANT: Sorry to inform you Scott, there are no flights on your requested dates. Sorry for the inconvenience provided.

USER: That's fine, now I have to postpone my trip for next month. Thank you for assisting me.

ASSISTANT: It's my job Scott.

USER: You are welcome.

ASSISTANT: Thank you for choosing us. Have a good day.