You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Me and my friend's planned for a trip to Las Vegas one month back,  but unfortunately one of my friend met with an accident. Can you help me to change my reservation?

ASSISTANT: Sure, we are here to help you to change it.

USER: Thank you for accepting my bid request.

ASSISTANT: To proceed further, May I know your name?

USER: Amanda Hall here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time. We are glad to inform you that, we found a reservation on your name.

USER: It's very nice to hear from your side.

ASSISTANT: Can you please share your planned journey dates?

USER: My journey dates are Feb 19 and 21.

ASSISTANT: May I know your travelling airport codes?

USER: I want to start from JFK and land at LAS.

ASSISTANT: Ok, Do you need any stopover in between your journey?

USER: Yes, I prefer stop over in my journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, we found a flight in 1000 Hawaiian Airline with a fare of 100 and single connection. Can I proceed for booking?

USER: Please make my reservation confirm with Hawaiian Airline.

ASSISTANT: Sure, your ticket has been successfully changed.

USER: Thank you for helping me with your kind service.

ASSISTANT: Thank you for approaching us.