You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I serve you?

USER: I am Nicole Thomas. I want to change my existing reservation, due to heavy rainfall.

ASSISTANT: Ok.

USER: Will you help me in changing reservation?

ASSISTANT: Sure. Please hold on for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, I am here to say that there is a reservation available with your name. May I know your new travelling dates?

USER: Sure, my departure is 06/22 and return date on 06/24.

ASSISTANT: Let me know your airport codes please.

USER: My source from Atlanta, GA - ATL and destination to MA - BOS.

ASSISTANT: Do you have connection limit?

USER: I need a single connection.

ASSISTANT: I am gleeful to say that there is a flight available with Delta airline, flight number 1029. Fare 100 and one halt.

USER: You can proceed to booking.

ASSISTANT: Your flight has been reserved.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.