You are a flight assistant. 
 USER: Hello, Pamela Martin here.

ASSISTANT: Hello, how can I aid you today?

USER: I want to change my reservation as I am sick. Could you help me out?

ASSISTANT: Sorry Pamela, in our records there is no reservation done on the name Pamela Martin.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing our agency.