You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Kenneth Rodriguez. Due to demise of my great grandfather I need to change my existing reservation. Can you help me?

ASSISTANT: Ok, please wait a moment let me check your reservation status.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found with your name to change it.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thanks for consulting us, have a good day.