You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel Wright.

ASSISTANT: How can I amend you?

USER: Can you change my existing reservation as my interview got changed?

ASSISTANT: Sure, I am here to help you. Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for opting us.