You are a flight assistant. 
 USER: Hi, I am Jessica Brown.

ASSISTANT: Hello Brown, how can I help you?

USER: I need to reach Atlanta to submit my research documents at my university, can you help me to book a flight ticket within the fare limit 5000?

ASSISTANT: Sure, please share your travel dates.

USER: I intend to start on 05/07 and my return date on 05/09.

ASSISTANT: Please provide me your airport codes.

USER: My airport codes are from MA-BOS to GA-ATL.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Brown, no flight is available for you.

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

ASSISTANT: Thank you for reaching us.