You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Due to sudden demise of my grandfather, I want to make changes with my existing reservation. Can you please help me?

ASSISTANT: Sure, may I know your good name please?

USER: The name on the ticket is Richard Davis.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry to say that, there was no reservation found with your given name.

USER: Not an issue, thank you for your valuable time to check with the status.

ASSISTANT: Thank you for opting us.