You are a flight assistant. 
 USER: Hello, Raymond Rodriguez here.

ASSISTANT: Hello, how can I help you today?

USER: One of my close friend met with an accident so I want to see him as soon as possible, can you please help me with booking a direct flight?

ASSISTANT: Sure, I will help you to book a flight. May I know your source and destination airport codes?

USER: Thank you. Yes, I want to depart from LAX to reach CLT.

ASSISTANT: Please share me your planned journey dates?

USER: I want to go on 06/16 and intend to back on 06/18.

ASSISTANT: May I know your budget for flight ticket?

USER: I can pay up to 1000.

ASSISTANT: Please wait for a moment, while I check for the flight.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your journey data.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us, we hope see you again.