You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you?

USER: I am Pamela Hernandez. I want to change my reservation due to sudden demise of my uncle.

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: Thank you for your information.

ASSISTANT: Thank you for availing us.