You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

USER: Can you help me in changing my reservation as my previous agent got some things wrong?

ASSISTANT: Ok, may I know your name to check with your reservation status?

USER: I am Pamela Martin.

ASSISTANT: Please be on hold for a moment.

USER: Sure, take your time.

ASSISTANT: I am very apologetic to inform you this news, but there is no active reservation found by your name in our agency database.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for approaching our agency.