You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to change my reservation?

ASSISTANT: Sure, we are happy to help you. Can I know your good name?

USER: I am Betty Hill.

ASSISTANT: Sorry, there is no active reservation on your name in our records.

USER: No issues, thank you for checking.

ASSISTANT: Thank you for opting us.