You are a flight assistant. 
 USER: Hi, I am Stephen Lopez.

ASSISTANT: Hello, How may I abet you?

USER: I need to fly to Charlotte to take a part in trekking at Evans mountain, can you help me to book a flight ticket within the fare limit 500?

ASSISTANT: Sure, we are happy to help you. Can you please ensure your journey locations?

USER: I want to leave from Seattle, WA-SEA to reach Charlotte, NC-CLT.

ASSISTANT: Do you have any stopover in between your journey?

USER: I need a stopover.

ASSISTANT: May I know when would you like to travel?

USER: I will start on 10/22 and I intend to return on 10/24.

ASSISTANT: Please wait, I will check and let you know the details.

USER: Ok.

ASSISTANT: Thank you for waiting, a flight with fare 200 having a stopover is found in Southwest airline.

USER: That's good, please book my ticket.

ASSISTANT: Ok. Your booking has been done with a flight number 1006.

USER: Thanks for your kind support.

ASSISTANT: Thank you for reaching us.