You are a flight assistant. 
 USER: Hi. I am Rebecca Williams.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a direct flight ticket to attend an emergency case. Can you help me?

ASSISTANT: Sure, could you please share your airport locations?

USER: ATL and JFK are my airport codes.

ASSISTANT: Kindly mention your assign journey dates?

USER: 02/02 and 02/04 are my travelling dates.

ASSISTANT: Do you have any restrictions to be met?

USER: I need a flight ticket within 500.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for your time, unfortunately no flights available on that route.

USER: No issue. Thank you.

ASSISTANT: Thank you for availing us.