You are a flight assistant. 
 USER: Hello, I am Elizabeth White.

ASSISTANT: Hello, Elizabeth White. How may I help you for the day?

USER: As I am a doctor, I need to attend an emergency surgery in Charlotte, NC - CLT from Atlanta GA - ATL. Can you book me a ticket with price range of 200?

ASSISTANT: Sure. May I know your travel dates, Please?

USER: I start on 04/22 and return on 04/24.

ASSISTANT: May I know, Do you have any restriction on connections limit?

USER: There should be a single connection.

ASSISTANT: May I know, Do you have any price limit?

USER: The price limit is 200.

ASSISTANT: We are very happy to inform you that, We found a flight with airline:AA having flight number:1021 matching all your requirements. Shall I proceed with the ticket booking?

USER: You can proceed.

ASSISTANT: OK. Your ticket is booked. Thank you, For choosing us to book your ticket.

USER: Thanks for the help.

ASSISTANT: Have an excellent journey.