You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I amend you today?

USER: I have planned to attend for Graduation day at my university with is located at Atlanta, but I am unable to attend now. So, can you please change my reservation?

ASSISTANT: Sure, we are euphoric to help you. To proceed further, please provide your good name.

USER: Samantha Wright is my name.

ASSISTANT: Ok, please wait for a moment, I will check with the reservation on your name to change it.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting. We regret that, we did not find any reservation on your name to change it.

USER: Ok, not an issue. Thank you for your valuable time.

ASSISTANT: Thank you for contacting us.