You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: There is a slight change in my recent reservation, can you please help me?

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

USER: Myself Melissa Collins.

ASSISTANT: Please be on hold. There is no reservation found on your name in our database to change it.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you.